Raven-Symone [ tickets ] has called off her planned "Pajama Party" arena tour, which was scheduled to visit dozens of US arenas through July.

A press release issued by organizers said that the tour has been canceled due to "unforeseen circumstances."

"Raven-Symone apologizes to her fans for any inconvenience this may have caused and ticket refunds will be available from the original point of purchase," the statement said.

Concertgoers were encouraged to wear their PJs and arrive early for a mock slumber party that was to precede the singer's performance on a stage designed to replicate her own house.

Fellow Disney star Mitchel Musso, known for his role as Oliver on the show "Hannah Montana," had been scheduled to open the tour, performing original R&B/hip-hop songs from his own forthcoming album. Artists B5 and Clique Girlz were also to be on the bill.