Devotees, some of whom splashed up to 200 dollars to see the singer, purportedly began walking out after just three songs.

“It was just really bad. She has not spoken, there is no interaction,” News.com.au quoted Kathy Wright, 32, as saying.

Friend Josh Blee said: “We are really big Britney fans but it was cr-p. I thought after the music awards she would make up for it with a wicked concert, but she has let us down.”

The 27-year-old pop princess was also slammed for miming and “appalling” singing ability on stage as she performed before a 17,000 strong crowd.

Fans complained about their dissatisfaction with the giant screens that apparently displayed almost no vision of the star, who was said to have had her back to the audience for most of the show.