We come to you with sad news this afternoon as Chris Squire, bassist and co-founder of Yes, has passed away at the age of 67.

Squire's bandmate Geoff Downes was the first to share the news via Twitter post.

Squire was diagnosed with acute erythroid leukemia. Not long after Downes' post, Yes officially revealed the news to their fans in a post of their own.

It’s with the heaviest of hearts and unbearable sadness that we must inform you of the passing of our dear friend and...

Posted by Yes (official) on Sunday, June 28, 2015

Squire was the only member of Yes to appear on all of their studio album. The band's first ever show without Squire will be when they play with Toto on Aug. 7.

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