Exhausted Madonna 'collapses twice during Bulgaria gig'

London, September 2 (ANI): Madonna reportedly collapsed twice during her performance in Sofia, Bulgaria on August 29.

The Queen of Pop, who has been hopping the globe for her 'Sticky and Sweet' tour, was said to have lost consciousness as she sang 'Holiday'.

The singer had to be held up by a dancer before she passed out and fell over as she left the stage during Spanish Lesson, according to sources.

"Madge was really worried backstage. She had to sit down for a longer break than usual between songs," the Sun quoted a source as saying.

"She refused to end the show or take a break after the Holiday dizzy spell. It turns out she's suffering from exhaustion. She is anaemic.

"She was advised to postpone the last two shows in Israel for a few days, but logistics and stubborness stopped her. She'll do them then take some rest," the source added. (ANI)