Lady GaGa had a Tattoo inked into her newly-shaved head in front of a live audience last night (13.09.12).

The 'Born This Way' hitmaker had an image of a cherub wearing a crown etched into the back of her head at New York's Solomon R Guggenheim Museum as part of the launch for her new perfume Fame, and Tattooist Mark Mahoney says the design is a nod to her Italian Roots.

Mark - who was helped by his assistant Wes Brown - explained: ''It's kind of a Renaissance era cherub, a nod to her Italian heritage.''

Gaga - whose real name is Stefani Germanotta - put on a number of live art installation features during the evening to launch the scent, which included the singer arriving at the venue inside a replica of her perfume bottle, inside which she was asleep on a bed.

A sign was placed outside the bottle stating: ''Touch Lady Gaga's hand, but please don't wake her.''

Party goers were then encouraged to put their hand inside the bottle and touch the 26-year-old star, a process which lasted an hour before the Tattooists got to work on her latest inking while she was still inside the object.

Earlier in the evening, Gaga made a dramatic entrance to the museum by arriving in a vintage black Cadillac and she showed off her bottom in a black sheer dress as she got out of the vehicle to enter the venue.