Basement Jaxx are set to headline the Wireless festival, organisers have announced.
The Brixton dance troupe will top the bill on the Saturday (4 July), as the event returns to Hyde Park for the fifth successive year.
Speaking about their appearance the band said: "Frank Sinatra once said "It's very nice to go traveling but it's so much nicer to come home" and he was right. It's going to be a mad summer for us, playing in all four corners of the world, but we are really looking forward to coming back to the very heart of London and playing at Wireless."
The Streets have also been confirmed as the second stage headliners on the same day.
Speaking about the band's appearance, lead singer Mike Skinner said: "I am excited about returning to the site of my favourite ever gig – when Daft Punk played at Wireless 2007.
"This year we will be performing just before Basement Jaxx who I remember introduced me to my French idols on that hot Hyde Park evening two years ago. Hyde Park will hopefully be as hot this year and someone else will enjoy their favourite ever gig."
British rapper Dizzee Rascal has also been confirmed for a slot at the festival, playing the main stage on the Saturday.
Wireless 2009 will shrink to a two-day event running from 4-5 July.
Early bird tickets go on sale this Wednesday (18 February) at 9am.
This year's festival will have four stages on music as well as fairground rides, food stalls, beer gardens and fun games.