Fans will have a chance to hear Lady Gaga's new album ARTPOP at the free iTunes Festival 2013 on 1 September in London.
The "Born This Way" singer, who was forced to rush-release her new single "Applause" after it was leaked by hackers at the weekend, heads star-studded iTunes line-up.
Other big name acts announced for the Roundhouse-based festival include Tinie Tempah, Justin Timberlake, Jessie J, Arctic Monkeys, Tom Odell and Kings of Leon.
Tickets are reserved or for competition winners only.
The festival offers 30 consecutive nights of live music from around 60 solo artists and bands throughout September.
The event will also be streamed live to millions of fans worldwide on the internet.
The iTunes Festival line-up in full:
1 September - Lady Gaga
2 September - Sigur Rós supported by Polica
3 September - The Lumineers supported by Phox
4 September - Paramore supported by Fenech-Soler
5 September - Rizzle Kicks
6 September - Queens of the Stone Age supported by Palma Violets
7 September - Phoenix supported by Little Green Cars
8 September - Bastille supported by The 1975
9 September - Arctic Monkeys supported by Drenge
10 September - Jake Bugg supported by Valerie June
11 September - Kings of Leon supported by Jimmy Eat World
12 September - Elton John supported by Tom Odell
13 September - Avicii
14 September - Chic featuring Nile Rodgers supported by Janelle Monáe
15 September - Vampire Weekend supported by The Olms
16 September - Jack Johnson supported by Bahamas
17 September - Ludovico Einaudi
18 September - Thirty Seconds to Mars supported by The Family Rain
19 September - TBA
20 September - Primal Scream
21 September - TBA
22 September - TBA
23 September - Jessie J supported by Lawson
24 September - TBA
25 September Pixies supported by NO CEREMONY///
26 September - Tinie Tempah
27 September - TBA
28 September - John Legend supported by Robin Thicke
29 September - Justin Timberlake
30 September - TBA