http://www.rollingstone.com/music/news/chuck-berry-collapses-onstage-in-chicago-20110103Legendary singer also seemed exhausted at NYE show the night before
Chuck Berry was an hour into his set at Chicago's Congress Theatre on New Year's Day when — as his pianist tuned his guitar — he slumped face-first into the keyboard. "I'm struggling," he said before several venue staff members rushed Berry off the stage to receive medical help.
He returned 15 minutes later to tune his Gibson ES-335 before a man approached Berry, lifted the guitar off him and escorted him offstage. Ten minutes later, he returned once more to apologize for having no strength. "Someone took my guitar," he said. "They're afraid I'll do my scoot, but I'm gonna try to do my scoot anyway." He did, but looked physically weak.
The 100 Greatest Guitarists of All Time: Chuck Berry
"Chuck Berry passed out," Chicago's Shakespeare District police Capt. Marc Buslik told the Chicago Sun-Times. "He was just faint initially. He was real confused. He wouldn't come off the stage." Berry's rep Dick Alen told the Associated Press the guitarists collapse was due to exhaustion.
More at the link --