Lady Gaga invites people over to watch her sleep

Lady Gaga invited over some celebrity friends to watch her sleep at the Guggenheim Museum to mark the end of the New York Fashion Week, it has been revealed.

According to the New York Daily News, the ever-controversial singer arrived to the black-tie end of show party at around 6:30 pm, sidestepping the red carpet where reporters weren't expecting her for another hour.

She was fashionably early because she wanted to prepare for her performance art piece, "Sleeping with Gaga."

Guests for her sleepy installation were extremely limited.

"She personally decided who got the nod for invitations and who couldn't come," Contactmusic quoted an insider as saying.

Although the songstress has been busy with her 'Born This Way' tour and a new album, "she's really hard-working and took this upon herself," the source said. The party "is important to her."

At around 9pm, Gaga climbed into her bed for the piece – which was a weird egg/claw structure – and allowed some of her star guests, such as Paris Hilton and Marc Jacobs, to poke her through strategic holes whilst she slept.

45 minutes later, Gaga emerged from the egg, which was when assistants stripped her down to lingerie and thigh highs.

She then crawled back into the strange cradle and was tattooed live on a big screen TV.

All this was in aid of her new perfume, which she wants to smell "like an expensive hooker."