It is a sad day in rock and roll. Malcolm Young was my friend and the heart and soul of AC/DC. I had some of the best times of my life with him on our 1984 European tour. He will be missed and my deepest condolences to his family, bandmates and friends.

— Eddie Van Halen (@eddievanhalen) November 18, 2017

Malcolm,
Thank you for being an integral part of the soundtrack to my life. Your music is the definition of timeless and inspiring.
RIP. pic.twitter.com/B888DfXR9A

— Lars Ulrich (@larsulrich) November 18, 2017

So sad to learn of the passing of yet another friend, Malcolm Young. He will be sadly missed. God Bless @ACDC pic.twitter.com/HuEp3kCuyQ

— Ozzy Osbourne (@OzzyOsbourne) November 18, 2017

"I’m sad to hear of the passing of Malcolm Young. It was great to get the opportunity to open for AC/DC on the Highway To Hell tour & we certainly learned a thing or two. He was an incredible guitar player & the glue for that band onstage & off. RIP Malcolm, say hi to Bon." - Joe

— Def Leppard (@DefLeppard) November 18, 2017

I’m sorry to hear about Malcolm Young, a fine player. pic.twitter.com/nxlxTrEZIS

— Tony Iommi (@tonyiommi) November 18, 2017

No words...

...just tears.

Rest in Power Malcolm Young.@acdc pic.twitter.com/HdDrfVBkIc

— Disturbed (@Disturbed) November 18, 2017

GOD BLESS MALCOLM YOUNG - 1953 - 2O17 tBLSt SDMF pic.twitter.com/kZxtl4uG6L

— Zakk Wylde (@ZakkWyldeBLS) November 18, 2017

Sad news about Malcolm Young. Dementia is such a horrible disease. pic.twitter.com/hpjrlffVLX

— Geezer Butler (@GZRMusic) November 18, 2017

This is a monumentally sad day in Rock n Roll. RIP #MalcomYoung Take a moment of silence in his… https://t.co/cjXUzL2NJU

— Slash (@Slash) November 18, 2017

Sincerest condolences going out to the Young family today. Malcolm Young sadly passing too soon. Love ya Angus! pic.twitter.com/a3naL0CvdA

— Duff McKagan (@DuffMcKagan) November 18, 2017

Rest in rock power AC/DC's #MalcolmYoung, #1 greatest rhythm guitarist in the entire history of rock n roll. THANKYOU for everything. pic.twitter.com/boXBDkJJ6W

— Tom Morello (@tmorello) November 18, 2017

This man inspired more rock & roll than the world will ever be able to measure. His infectious crunching riffs, iconic Gretsch & Marshall tone made him one of a kind. The epitome of true, badass rock & roll.
Thank you for the inspiration.#RipMalcolmYoung pic.twitter.com/6BfC9WxTFo

— Tom Keifer (@TomKeiferMusic) November 18, 2017

I have to go...I am losing it that Malcolm is gone. I hate this...

— Dave Mustaine (@DaveMustaine) November 18, 2017

Malcolm is gone, and although his music lives on, there are no words to express this sadness. Bittersweet as it is, I’m happy he’s free from the dementia and in Heaven with Bon and his brother George. I owe so much to Malcolm Young... https://t.co/soxrFpQsmJ pic.twitter.com/YmUI6IH5sG

— Dave Mustaine (@DaveMustaine) November 18, 2017

Malcolm Young of AC/DC`s guitar playing feels like sex. What a perfect. perfect rhythm guitarist. What an original and immensely pleasurable body of work he gave us. Gone way too soon, he will be sorely missed.

— Marty Friedman (@marty_friedman) November 18, 2017

R.I.P. #MalcolmYoung. One of the greatest rhythm guitar players from one of the greatest rock n roll bands of all time.
My sincere condolences to @acdc and the Young family. pic.twitter.com/XIFymzF02G

— Dave Lombardo (@TheDaveLombardo) November 18, 2017

While most of the world goes on with the day, many of us are mourning the loss of the great #malcolmyoung . I can’t tell you how much joy he and @acdc have brought me. This is a legend, a real legend.lets all remember him not just today but every day ? Mal Rules!! pic.twitter.com/22vGOLfKBz

— Charlie Benante (@skisum) November 18, 2017

Our Thoughts & Prayers Are With His Family, Friends & Fans...Great Guy ...A Pleasure To Know...Truly Missed, Malcolm...XX https://t.co/1ECM7urBN8

— David Coverdale (@davidcoverdale) November 18, 2017

Malcom Young. I spent so many childhood days pretending to be you in my bedroom, air guitar, staring at your posters. Thank you for your contribution to rock and roll.

— Clint Lowery (@clintlowerynet) November 18, 2017

So sorry to hear about the passing of Malcolm Young. I grew up on AC⚡️DC and always admired his playing. RIP and Godspeed my friend? pic.twitter.com/f1ztks77xr

— MichaelSweet Stryper (@michaelhsweet) November 18, 2017

R.I.P. Malcolm.. Thank you for all the decades of amazing music & for rocking so hard for us all… https://t.co/FtB3tV4Vle

— Ray Luzier (@RayLuzier1) November 18, 2017

RIP Malcolm Young - A very important musician who helped shape the genre of hard rock. pic.twitter.com/GuXWNNjwMS

— Derek Sherinian (@DerekSherinian) November 18, 2017

Just landed in Paris and heard about Malcolm Young passing away. He was the reason I wanted to play rhythm guitar. Toured with him and he was genuinely lovely. The world has lost a true champion.

— Ginger Wildheart (@GingerWildheart) November 18, 2017

Wow...just got off stage here in Brisbane Australia (of all places) to the shocking news of Malcolm Young's passing. So sad...one of the great rhythm guitar players of all time. (James Hetfield and Scott Ian would be the 1st to say so themselves...) #RIPMalcolmYoung pic.twitter.com/qZXHIMpktF

— Mike Portnoy ? (@MikePortnoy) November 18, 2017

RIP Malcolm Young, co-founder Of the greatest Rock n Roll band ever.

— Gus G. (@gusgofficial) November 18, 2017

No.
No no no no no no DAMNIT.
?? https://t.co/K3l9pejeic

— The Boogie Knight Returns (@CoreyTaylorRock) November 18, 2017

R.I.P. Malcolm Young 1953-2017 ? You wrote the best riffs in the best band and you changed the world. #legend pic.twitter.com/52hGuyvfxk

— Robert Caggiano (@RobCaggiano) November 18, 2017

#malcomyoung RIP at a loss for words to properly express how huge his influence was on me and hard rock ?? we salute you now and forever pic.twitter.com/ZqVGIQWvg7

— WARRANT (@warrantrocks) November 18, 2017

There’s only been a handful of “True Rhythm” players that have walked this earth!! Malcolm, in my opinion was the Absolute..God Bless You Sir!! Here’s to better places..
RIP Malcom Young!! https://t.co/LqS7LaoNno

— REX BROWN (@REJASFROMTEJAS) November 18, 2017

RIP Malcom Young!!! https://t.co/efsineMM9s

— Jason Bittner (@jbittnerdrums) November 18, 2017

RIP to the King of Rhythm Guitarist Malcolm Young. Thank you for your years of timeless music. We Salute you. @acdc

— Nonpoint (@nonpoint) November 18, 2017

Such sad news, RIP Malcolm Young. We Salute You! @acdc

— OVERKILL (@OverkillBand) November 18, 2017

There's no debate that #MalcolmYoung was the greatest rhythm guitar player & riff writer ever... #RIPMalcolmYounghttps://t.co/qeGkrTF4Iv

— Chris Jericho (@IAmJericho) November 18, 2017

RIP #MalcolmYoung Obrigado por tudo. Thank you, a true revolutionary! @acdc pic.twitter.com/OI9Irs6bV1

— Andreas Kisser (@andreaskisser) November 18, 2017

R.I.P. Malcolm Young.

Thank you for the music and the inspiration.https://t.co/QTKHwuDhK2 https://t.co/vr7S9iDg2C

— Kreator (@kreator) November 18, 2017

Malcolm Young was a HUGE inspiration to myself and countless others. Thank you for the decades of incredible riffs. Thank you for leading me down the path of rock n roll. On behalf of the entire world, THANK YOU FOR AC/DC

— Ben Bruce (@benjaminbruce) November 18, 2017

A proper legend. Have a beautiful journey. Rest in Peace, Malcom Young.

— Mina Caputo (@MinaCaputo) November 18, 2017

My thoughts, prayers & deepest condolences go out to the family, friends & everyone within the @acdc camp on the loss of the truly great #MalcomYoung. #ACDC has always been one of my favorite bands & Malcom will certainly be missed.

— Bret Michaels (@bretmichaels) November 18, 2017

The driving engine of AC/DC has died.A tragic end for a sometimes unsung icon. One of the true greats. RIP. https://t.co/cJe1Xr17IA

— Paul Stanley (@PaulStanleyLive) November 18, 2017

RIP Malcolm Young...the backbone of AC/DC#RIPMalcolmYoung #ACDC

— kipwinger (@kipwinger) November 18, 2017

RIP Malcolm AC⚡️DC pic.twitter.com/ot8tozk6WD

— STEPHEN PEARCY (@StephenEPearcy) November 18, 2017

"..when I was a kid I wanted 2 things ... To be able to solo like SRV , And to be able to play… https://t.co/ZD62jPqKr8

— Shinedown (@Shinedown) November 18, 2017

Sad sad day.. Rest well Malcolm Young. Thank you for the riffs and all that you've done for Rock N Roll!! ? #RipMalcolmYoung pic.twitter.com/HczrTlTJiV

— Jamie Mathias (@BFMVJAMIE) November 18, 2017

I was dreaming of Malcom Young when I was woken by a text message of his death. Malcom was the diesel that powered the locomotive that had such impact on me. I was lucky to have met him on a few occasions. He was always very nice. I’m happy he is at peace.

— Scotti Hill (@ScottiHill) November 18, 2017

“Pick up your balls, and light up your cannon, for a 21 guns salute”
We love you Sir... Thank you... for everything.
R.I.P. Malcom Young https://t.co/n2in1CAfhX

— Brent Smith (@TheBrentSmith) November 18, 2017

Rest well, Malcolm. We salute you. #MalcolmYoung #ACDC pic.twitter.com/4N8WqGU4w9

— Nickelback (@Nickelback) November 18, 2017

All HAILS! Rest in Power riff Lord Malcom Young! SOLID player and a Rock n Roll Legend forever!… https://t.co/jZAwCXWAyk

— Jesse Leach (@EyeAgainstI) November 18, 2017

Another great has moved on? Thank you for your musical contributions. For being an inspiration to so many. May you #rip #malcolmyoung #guitarist @acdc ?#rocklegends #rocknroll #godspeed https://t.co/bPdIEmrn2u pic.twitter.com/nnoBLs0ZKs

— Marcos Curiel (@MarcosCuriel) November 18, 2017

I'm so shocked to hear about Malcolm today.
We both grew up playing Rock N' Roll together and you, Bon and Angus... https://t.co/DIBDxIJLSZ

— PeteWayOfficial (@PeteWayOfficial) November 18, 2017

Goodnight riff master. Thank you for the music.. I have a career because of you x ? #MalcomYoung… https://t.co/BsNui4EJd0

— Stevie D. (@StevieDacanay) November 18, 2017

R.I.P. Malcolm Young

— Joe Satriani (@chickenfootjoe) November 18, 2017

RIP to the great Malcolm Young. He was truly one of a kind and a gift to to us all with his… https://t.co/8UQBwX8gXL

— FrankBello (@TheFrankBello) November 18, 2017

R.I.P. #acdc #malcomyoungforever https://t.co/OvDZXh1FAT

— Rikki Rockett (@RikkiRockett) November 18, 2017

Today we lost one of the true greats. Malcolm, your contribution to Rock ‘n Roll is… https://t.co/g5DeRTCaKM

— Jason Hook (@jasonhook_5fdp) November 18, 2017

If anyone is wanting to learn guitar please listen to this. The world will be a better place. Thank you Malcolm. https://t.co/rPvcRTJCG0

— Robert DeLeo (@STPRobertDeLeo) November 18, 2017

Isn't this where it started for so many of us learning rock guitar? 1 of my all time favorite rhythm players.
RIP Mal pic.twitter.com/INyQueqxMm

— Robert DeLeo (@STPRobertDeLeo) November 18, 2017

Have a Drink on Me... RIP Malcolm Young! https://t.co/rbYfnQ9IuU

— Rob Hammersmith (@RobHammersmith) November 18, 2017

So sad to hear about Malcolm Young. Absolute legend. RIP.

— Justin Hawkins (@JustinHawkins) November 18, 2017

Malcolm was a good man. Always a kind hearted soul. finally recall when we took out AC/DC on their first American tour. It will be sadly missed. RIP. https://t.co/InQcTt6LDf

— Gene Simmons (@genesimmons) November 18, 2017

Farewell Malcolm Young. One of the great riffmasters of all time, his loss sadly follows his and Angus’s older brother George - a ‘60s pop legend and also AC/DC’s original producer - who passed away last month almost to this day. Of the two onstage Young brothers, Malcolm was the quiet one, if not in volume, in terms of onstage antics. Like Alex Van Halen, he provided the fraternal foundation of which a great band was built upon and made it possible for his lead guitar playing brother to reach full potential - competing for the spotlight with charismatic singers (in Angus Young’s case, becoming the very mascot of the band) and becoming lead guitar personified for generations of listeners - yet always coming across as more than content as the supportive brother, never seeking undue attention and holding it down with dignity. Malcom had no distinctive outfit. Malcom had no signature stage moves. He didn’t need them. He had the riffs and he did them better than nearly anyone. Who else in heavy rock could play a Gretsch White Falcon - a guitar associated more with rockabilly (ie Brian Setzer) - and pull it off? For many of us, Malcom was our real life version of the fictitious “Guitar George” in Dire Straights’ The Sultans of Swing “He knows all the chords... he’s strictly rhythm he doesn't want to make them cry or sing” His riffs for AC/DC will go down in history alongside Jimmy Page’s for Led Zeppelin, Tony Iommi’s for Black Sabbath or anyone else’s. Malcom gave us many great measures of music and he will be missed immeasurably. RIP #ripmalcolmyoung #AC/DC #malcolmyoung

A post shared by Alex Skolnick (@alexskolnick) on Nov 18, 2017 at 8:07am PST

Malcolm had an intensely powerful, percussive and economic style of playing that made him the greatest rhythm guitarist of all time. His uncanny ability to wring only the necessary notes out of his Gretsch was what made AC/DC - his riffs, feel and tone the soul of that band. What he means to me is unquantifiable. I am a rhythm guitarist because of Malcolm Young, he lives with me always and I hope to honor the man and his legacy every time I play. And now I’m going to crank Riff Raff and play along. My condolences to his family and friends. Cheers and RIP Malcolm Young. Tattoo by @thekatvond

A post shared by Scott Ian (@scottianthrax) on Nov 18, 2017 at 9:33am PST