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The 'Applause' singer debuts seven brand new songs from her album 'ARTPOP' to kick off the month-long music festival.
The 'Marry The Night' singer was lifted up to the Roundhouse ceiling in a human-sized cage to kick off the show.
The US star is backed by a troupe of dancers as she kicks off her set with a new 'ARTPOP' song. Picture: iTunes
The 'You & I' singer performed an energetic set of seven brand new tracks for the Roundhouse audience. Picture: iTunes
The US pop star rocked a shell bikini and giant blonde wig to perform songs like her titular track 'ARTPOP'. Picture: iTunes
Among the songs Gaga debuted with pig-themed 'Swine' and a slowed down piano ballad called 'I Wanna Be With You'.
Lady Gaga is seen being strapped into a giant cage to be lifted up into the sky. Picture: iTunes
The 'Born This Way' singer wore several different looks and even removed her wig during one point in the show. Picture: iTunes
Lady Gaga is the first artist to play iTunes Festival, with the likes of Justin Timberlake, Jessie J and Katy Perry still to perform this month. Picture: iTunes
The 'Applause' singer performed alongside several guests including T.I. on the big screen for the song.
Gaga gets a full view of the audience while singing from way up in the venue ceiling. Picture: iTunes
Gaga's set was the first time fans had gotten to hear many of the songs live in concert. Picture: iTunes
Lady Gaga closed out her set with a performance of new single 'Applause' to end the show. Picture: iTunes