Katy Perry brings 2013 iTunes Festival to an end with a 'Roar'

30 September, 2013: OK, so it's not really a 'festival' as such, but this year's iTunes Festival has been a truly incredible run of London gigs, with some of the biggest names in music performing at Camden's Roundhouse throughout the month of September.

Last night, the event came to a close with a show-stopping headline set from US pop sensation Katy Perry, who performed a ten-track set featuring classic pop hits such as 'I Kissed A Girl' and 'Firework', plus current smash hit 'Roar' and brand new tracks 'Walking On Air' and 'By The Grace Of God' - the latter of which had never been performed live before.

Katy Perry was supported by two of the biggest new female pop acts on the planet at the show, with Swedish duo Icona Pop performing tracks from their debut album and Australian rapper Iggy Azalea also taking to the stage. Katy Perry's full setlist is below. See photos from the show here.

Walking on Air
California Gurls
Teenage Dream
I Kissed a Girl
Dark Horse
Part of Me
By the Grace of God
Wide Awake
Firework
Roar