Why Is Mariah Carey Canceling Events?

Reports that Mariah Carey has rescheduled several upcoming appearances has left many fans wondering if something might be wrong with the singer. Carey, 40, had been tentatively set to receive a star on the Hollywood Walk of Fame Aug. 25, perform on Today Aug. 28, and also tape an episode of VH1's Storytellers.

A source says the singer is completing her new album, Memoirs of an Imperfect Angel, the release of which has been pushed to Sept. 29. "Record release dates change all the time," Berger confirms. "It's nothing unusual and it doesn't signal anything.

There are a lot of moving parts to Mariah's professional lift. She's making sure the record is how she wants it to be and its no big deal." In addition to working on her album, Carey is launching another perfume line and promoting her upcoming film, Precious, which is produced by Oprah Winfrey and opens in November.