Not to be outdone by
's Rihanna , new explicit naked pictures of controversial S&M video Lady GaGa have been leaked by one of the star's 'close friends'.
The Mirror, the Poker Face hitmaker is seen in the saucy bondage-like snaps lying on the floor naked, in a pair of 5inch stilettos and bound at the feet with black rope.
One of the other images also shows GaGa passed out at the bottom of some stairs, with the eccentric performer's pal claiming that after their wild night out, she couldn't be woken for hours.
Lady G's ex-acquaintance also told The Mirror that the 24-year old has "stepped up" her drug taking since hitting the big time, and chose to release the shocking pictures as a "wake up call" to GaGa, real name
They told the newspaper: "Stefani used to be so happy and full of life but lately Im shocked by how much she has changed she has gone off the deep end."
"She has this crazy room in her house. She sits with drawing charcoal in there and just writes all over the walls. Then she'll have people come in and repaint it and then she'll start all over again."
The pal added: "The idea for her infamous meat costume was the result of a cocaine-fuelled binge. She thinks doing drugs helps her as an artist but its gone too far now."
A spokesperson for the
Telephone singer has refused to address the report, claiming that the singer "had no comment to make."
Meanwhile, in other GaGa news, rumours have suggested that she is planning to duet with British rockers
at the Muse later this month. Grammy Awards
Daily Star has reported that Lady G could be stepping out with Matt Bellamy and co, as well as premiering her new single Born This Way at the ceremony on 13th February.