FILE - American guitarist, singer and songwriter, Chuck Berry performs during the "Rose Ball", in this Saturday, March 28, 2009 file photo taken in Monaco. A Chicago fire official says 84-year-old rock-and-roll legend Chuck Berry felt ill and was checked out by ambulance medics at a show Saturday night Jan. 1, 2011 in Chicago. Fire Department spokesman Joe Roccasalva said Berry felt better and signed a release. (AP Photo/Lionel Cironneau, File)