RIP Jack Bruce. One of the true greats. Bass playing & singing in Cream influenced countless others who followed. Sad pic.twitter.com/vteKTkKFDP

— Paul Stanley (@PaulStanleyLive) October 25, 2014

So sad to hear of Jack Bruce passing. My biggest influence and favourite bass player. Thank you, Jack. RIP.

— Geezer Butler (@GZRMusic) October 25, 2014

RIP to Jack Bruce. #Legend #RIPJackBruce

— Official Motörhead (@myMotorhead) October 25, 2014

Very sad to hear of the passing of Jack Bruce, a major influence in music and an amazing bass player and singer. He was a hero to so many.

— Tony Iommi (@tonyiommi) October 25, 2014

RIP to Jack Bruce. You are with Ronnie Now. Our thoughts go out to his family, friends and fans. #RIPJackBruce

— Official Dio (@OfficialRJDio) October 25, 2014

Jack Bruce " Bassist of Cream " R.I.P.

— Mick Mars (@mrmickmars) October 25, 2014

Very very sad to hear of Jack Bruce’s passing. Amazing musician and inspiration. Rest in peace.

— Wolfgang Van Halen (@WolfVanHalen) October 25, 2014

RIP Jack Bruce...I had the honor of jamming with him a few years ago, a memory I will always cherish! One of the legends...

— Mike Portnoy (@MikePortnoy) October 25, 2014

Geddy on Jack Bruce: "The sudden passing of Jack Bruce is terribly sad news..." http://t.co/PuLCnl3Ca3 pic.twitter.com/N2SF5K4bkF

— Rush (@rushtheband) October 25, 2014

On a sad note-- by far, one of my biggest influences and important heroes of my life JACK BRUCE has passed away. God bless you, Jack.

— Billy Sheehan (@BillyonBass) October 25, 2014

I did a cover story for Guitar World mag w Jack years ago. We hung out together for the interview. What an amazing time we had.

— Billy Sheehan (@BillyonBass) October 25, 2014

What a privilege and an honor to hang with "rock royalty" like Jack Bruce. I look back at that as one of the high points of my life & career

— Billy Sheehan (@BillyonBass) October 25, 2014

He will be missed but his music is immortal. And his playing AND SINGING were spectacular. One of the GREATEST. EVER.

— Billy Sheehan (@BillyonBass) October 25, 2014

RIP my beautiful friend Jack Bruce .. Thanks your amazing art .. And being such an inspiration when I started playing bass: love you J💜🙏GH

— Glenn Hughes (@glenn_hughes) October 25, 2014

Truly in the sunshine of your life now. Rest In Peace #JackBruce.

— Dave Mustaine (@DaveMustaine) October 25, 2014

This is such a tremendous loss. I got to do a Rock n Roll Fantasy Camp with him in Las Vegas a few years back.... http://t.co/kPJjaokbAT

— David Ellefson (@ellefsondavid) October 25, 2014

With great sadness we've lost another legend. Jack Bruce was a tremendous talent. I jammed with him and met him : ( pic.twitter.com/T42BuJxu4d

— Bruce Kulick (@brucekulick) October 25, 2014