Lady GaGa may be struggling with her stardom

Lady GaGa has fuelled speculation that she has been struggling with her stardom after her "weird" behaviour at a photo shoot for Q Magazine.

The 23-year-old singer faced the camera nearly naked and swathed in chainmail as she grabbed her crotch.

But she was said to have bursted into tears halfway through before irking the photographers with her tantrums at the Mayfair Hotel in London, The Mirror reported.

The Poker Face hitmaker apparently hated the snaps and began crying and walked out. She later insister she would only continue if her boyfriend went behind the lens instead.

A source said: "The magazine wasn't going to stand for that so they told her people where to go. Her behaviour was weird."