Lady Gaga reveals Sex Dreams and wears a pig nose

It's mere DAYS until Lady Gaga opens the iTunes festival, and she's been holed up rehearsing in a dance studio in West London. It looks like the show is going well - she's been posting previews of her new album, ARTPOP, and video of the rehearsals online.

The latest was a song called Sex Dreams (warning: contains some rude words, not suitable for young ears), and the dance routine seems to feature Gaga lying on her back, a lot, and staring into space. So ... yeah. Not many moves to learn there, Gaga.

After she lay on the floor for a bit, Gaga went outside to greet fans, and just in case they'd heard too many sexy words, she put on a pig's nose to make things a whole lot LESS sexy. Oink.

The nose (and the plastic pig she was carrying) are all to do with another song she's previewed online, Swine. The lyrics are a bit aggressive - in the song, she sings: "I know I know I know you want me/ You just a pig inside a human body/ Screw out you just disgusting/ You just a pig inside...SWINE"

Maybe a song about her former mate and current enemy Perez Hilton ? We couldn't possibly say ...

She's also calling her comeback gig at the iTunes Festival Swinefest - telling fans that they have to dress up - listing a selection of items to wear, including: "Item 1: Seashells. Item 2: Seahorses 3: Starfish 4. Paint colored dreadlocks for securing 'under the sea' Boticelli-Punk accessories."

She continued: "5: BEDAZZLED PIG NOSE 6: BOWIE MAGICIAN GARB 7: TRASHBAG or ARTCLOTHES (THERE IS A PAINT ZONE)"

Gaga's been enjoying her time in London a LOT - she's been meeting fans, going for fish and chips and er, waking up her muscles. She tweeted: "Its so crazy feeling all my muscles wake up back up again! Rehearsal in London has been so fun, I missed performing and can't wait till Sun!"