Berry treated by medics before show
Rock-and-roll legend Chuck Berry felt ill and was checked out by ambulance medics before a show, the Chicago Fire Department said.
Fire Department spokesman Joe Roccasalva said 84-year-old Berry later felt better and signed a release.
Mr Roccasalva said confusion about Berry arose because emergency personnel later responded to a patron at the show who was unwell.
Berry is known for his classic songs including Maybelline, Johnny B Goode, and Roll Over Beethoven.