Keith Urban will play a concert in Chicago on Feb. 8, his first announced performance since entering a rehabilitation center for the treatment of alcohol abuse last year. The concert at the Chicago Theatre is sponsored by WUSN (US 99.5) and is part of the radio station's Live Country for Kids concert series. Urban's concert benefits the St. Jude Children's Research Hospital in Memphis, Tenn. The show was originally scheduled for Nov. 11. All tickets for that show will be honored. Remaining tickets, priced at $32.50 to $57.50, go on sale Friday (Jan. 19).