After spending two days in a Boston hospital to recover from food poisoning, Mariah Carey [ tickets ] was released on Wednesday (4/5) with a clean bill of health. However, the pop diva has postponed a concert that was scheduled to take place on Friday (4/7) at Air Canada Centre in Toronto.

Carey also postponed a Tuesday night (4/4) appearance at Boston's FleetCenter until April 13. The Toronto date hadn't been rescheduled at press time, but Carey was expected to make up the show. She is scheduled to resume her ''Rainbow'' world tour on April 11 at Madison Square Garden in New York.