Chris Squire, co-founder and bassist of legendary prog band Yes has passed away from a rare form of leukemia at the age of 67. The news was first reported by Yes keyboardist Jeff Downes, who tweeted "Utterly devastated beyond words to have to report the sad news of the passing of my dear friend, bandmate and inspiration Chris Squire. #yes" this morning. 

[Photo via Getty Images]

Squire was the only member of Yes to feature on all of their studio albums. Squire co-founded the band with Jon Anderson in 1968, and the addition of Steve Howe and Rick Wakeman led to massive success in the form of 1971's The Yes Album and 1972's Fragile. Squire released a solo album in 1975 titled Fish Out Of Water.

Watch a 1972 live performance of Yes' "Roundabout" in honor of Squire below. 

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