Sheryl Crow [ tickets ]'s May 22 concert at the Fox Theater in St. Louis has been canceled. According to a statement on the singer's website, the cancellation was related to "conflicting concert production logistics." Crow offered ticket holders an apology and pledged to return to the area sometime in the near future. Tickets may be refunded at the point of purchase. No other shows will be affected. Crow is scheduled to perform May 23 at Verizon Wireless Music Center near Birmingham, AL.