Katy Perry postpones Chicago, St. Paul concerts

Katy Perry, center, performs at the 53rd annual Grammy Awards on Sunday, Feb. 13, 2011, in Los Angeles. (AP Photo/Matt Sayles)

July 8, 2011 11:38:36 AM PDT
Katy Perry has postponed concerts in St. Paul, Minn., and the Chicago area because she's suffering from food poisoning.