Susan Boyle Susan Boyle

Susan Boyle canceled her second concert date on the Britain's Got Talent tour to rest.

"She had a rest day," the singer's rep told People of the missed Thursday gig in Liverpool. "She was feeling tired and she decided not to perform."

Britain's Daily Mail reported Boyle suffered a screaming fit over her cat Thursday afternoon when she "kept shouting 'I want my cat! I need my cat!'" a witness said. Boyle's rep denied such an incident took place.

Boyle, who was hospitalized for exhaustion after finishing second on Talent, returned to the stage Monday in her native Scotland after missing Sunday's Manchester date.

The Britain's Got Talent tour ends July 5.