The 'Holding on to Heaven' hitmaker and 'Waiting All Night' stars are two of the latest acts to be confirmed for the month-long event at the Roundhouse in London, and they are excited to perform.
Foxes - who will support The Script on September 15 - said: ''I'm honoured to be performing at the iTunes Festival this year alongside so many amazing acts. See you at The Roundhouse!''
Meanwhile, Rudimental are thrilled to be making their return to the annual event as headliners on September 20, having performed in 2012 alongside Ed Sheeran.
They added: ''We're really excited to be playing the iTunes Festival again.
''A couple of years ago we played it for the first time supporting Ed Sheeran and had a lot of fun, so we can't wait to be back in the Roundhouse headlining!''
The event opens on September 2 with Beck and Jenny Lewis, and will feature performances from the likes of Blondie, Pharrell Williams and 5 Seconds of Summer.
iTunes Festival Line-up:
September 2 - Beck + Jenny Lewis
September 3 - David Guetta + Clean Bandit + Robin Schulz
September 4 - 5 Seconds of Summer + Charlie Simpson
September 5 - Kasabian
September 7 - Calvin Harris + Kiesza
September 8 - Robert Plant + Luke Sital-Singh
September 9 - Sam Smith + SOHN
September 10 - Pharrell Williams + Jungle
September 11 - Maroon 5 + Matthew Koma
September 12 - Elbow
September 13 - Paolo Nutini
September 14 - David Gray
September 15 - The Script + Foxes
September 16 - Blondie + Chrissie Hynde
September 17 - Gregory Porter + Eric Whitacre
September 18 - Jessie Ware
September 20 - Rudimental + Jess Glynne
September 21 - Ryan Adams + First Aid Kit
September 26 - Lenny Kravitz
September 27 - Kylie + MNEK
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