articleThe Brief Katy Perry's fans will have to wait an extra day to see her perform at the American Airlines Center in Dallas. Instead, the Dallas Stars are playing Game 1 of the Western Conference finals on Wednesday. Katy Perry's upcoming "The Lifetimes Tour" concert in Dallas was pushed back a night because of a Dallas Stars playoff game at the American Airlines Center. What we know:Officials at the American Airlines Center confirmed the concert, which was originally scheduled for this Wednesday night, has been moved to Thursday night. The match-up is a repeat of last year's conference finals.