LONDON (AP) -- Internet singing sensation Susan Boyle has pulled out of a singing engagement with the "Britain's Got Talent" live tour.

A spokesman for Boyle told Britain's Press Association that the 48-year-old singer was advised to rest on Sunday.

The Scottish singer, whose first appearance on the talent show had millions of YouTube hits, had been hospitalized a few weeks ago for exhaustion after finishing second in the competition.

The church volunteer was due on stage for a matinee and evening show at the Manchester Evening News Arena, but did not perform.

She received standing ovations at the tour's previous shows in Birmingham and Sheffield.