Lady Gaga performs at the Roundhouse theatre

After days of rehearsals, Lady Gaga finally took to the stage at the Roundhouse theatre and she certainly didn't disappoint in the costume stakes.
One minute Gaga, 27, was a black-haired ninja complete with balaclava and eightie's powerhouse shoulderpads, the next she looked like a nymph of the sea with a shell bikini top and a seaweed encrusted thong giving her once again the chance to show off her derriere.
At the show - which was the first gig in the 20 day calendar of the iTunes Festival - fans watched Gaga perform a few of her most famous songs as well as tracks from her upcoming album ARTPOP.

-I.
source:dailymail