Singer Jessica Simpson (search) canceled her Tuesday show in Providence because of a kidney infection (search), a spokeswoman at Columbia Records said.

Simpson, 23, was under a doctor's care and planned to resume her tour in New Hampshire on Wednesday, said Renee Pfefer.

Organizers hoped to reschedule the performance.

Simpson, star of MTV's reality show "Newlyweds: Nick & Jessica" (search), was scheduled to go on stage before a nearly sold-out audience.

The appearance was part of a summer tour promoting her latest album, "In This Skin."