Hardest working man in showbiz!
Music legend Chuck Berry fell ill during a performance at Chicago's Concert Theater Saturday night and had to be escorted off stage.
The show's promoter said, "Obviously, something was off … Fifteen minutes into the set it went from fine to something wasn't right. He was starting songs mid-song, playing 15 seconds of a song."
The 84-year-old was a trooper though and didn't want to disappoint fans so he got back on stage, assuring fans that he was alright. Watch the video (above) of him talking to the audience. The guy even had the energy to do his infamous duck dance!