Lady Gaga performs in a shell bikini at The Roundhouse, Camden

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.
Earlier in the week, the world was treated to a sneak peek of her latest song Manicure, which she debuted at the fest, via a rehearsal video posted to the star's Youtube page.
The Applause singer, born as Stefani Joanne Angelina Germanotta, engaged in a choreographed dance routine with her backup crew, who writhed and contorted around her in a sultry and sweaty rendition. Read more: dailymail.co.uk.