The iTunes Festival was first held in 2007 and has played host to hundreds of artists including Oasis, Mumford And Sons, Florence + The Machine, Pixies, Haim, Primal Scream, Foo Fighters and many many more.
iTunes Festival 2014 confirmed artists so far:
5 Seconds Of Summer
Calvin Harris + Kiesza
Pharrell Williams + Jungle
Blondie + Chrissie Hynde