The rockers brought the "Thinking Out Loud" hitmaker onstage during their Kansas City show.
The singer was hospitalized in March, but few details were released until now.
The 56-year-old guitarist was diagnosed with prostate cancer the disease in February.
Roger Daltrey and Pete Townshend say the current tour will be their last because they feel too old to carry on.
The bassist was the only YES founder who featured in every incarnation of the band, which formed in 1968.
Check in on Prince, Paris, and Blanket, six years after the King of Pop's tragic death.
The "Do Ya Think I'm Sexy?" hitmaker had an operation on his thyroid gland to remove a growth and brought "the surgeon's knife within a fraction of an inch" from his vocal cords.
The band has signed up to headline the iconic U.K. music festival in 2016 after they were forced to pull out of this year's show due to frontman Dave Grohl's broken leg.
Grateful Dead founder Jerry Garcia was recently posthumously inducted in the Songwriters Hall of Fame in New York. Stars weigh in on their favorite Garcia song.
The veteran singer/songwriter raced ahead of pop stars to top the Billboard charts for the first time in nearly five decades.
Mayte Garcia is writing a revealing book about her life with the pop legend.
The guitarist is once again battling lymphoma, but hopes to keep on touring.
A cappella group Pentatonix will take you on an epic journey from the King of Pop's "I Want You Back" all the way to "You Are Not Alone," and everything in between.
Drink up! Queen Bohemian Lager is set to launch this summer.
What happens when grandma and grandpa go to a massive outdoor music festival?
Just in time for Christmas, a collection of previously unreleased interviews is coming out to mark the 20th anniversary of the rocker's death.
The rockers are set to see how the other half lives.
The "Don't Stop Believin'" hitmakers raised more than $1 million for the Los Angeles Philharmonic's education and outreach programs.
The band will release its first album since rocker Bruce Dickinson was diagnosed with cancer.
The Beatles rocker will mark his birthday in front of Los Angeles' fabled Capitol Records Tower.