CHICAGO (AP) -- A Chicago fire official says 84-year-old rock-and-roll legend Chuck Berry felt ill and was checked out by ambulance medics before a show Saturday night.

Fire Department spokesman Joe Roccasalva said Berry felt better and signed a release. 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."

Phone and e-mail messages left for Berry's agent Dick Alen were not immediately returned.