Arcade Fire and Portishead will play at this year's Exit Festival in Serbia.
The bands will join other confirmed acts Hadouken!, Tiga and James Zabiela at the festival, which takes place on July 7-10.
The Exit Festival will take place across 20 stages with 400 artists set to play.
Meanwhile, Arcade Fire are set to announce details of huge outdoor gig in London, Gigwise understands.
Tickets for the festival are on sale now. For more details and to buy Exit festival tickets, check out Gigwise Gig Tickets.
For more information about Exit festival and all this summer's festivals, check out the Gigwise Festival Guide.
The Strokes, Pulp, Muse To Play Reading And Leeds Festival 2011?
More Acts Announced To Join Judas Priest At High Voltage Festival 
Friendly Fires, Warpaint, Katy B For Great Escape Festival 2011
Bullet For My Valentine, Korn, Pendulum Join Download Festival 2011 Line-Up
From The Suburbs To Hyde Park: The Rise Of Arcade Fire
Arcade Fire Confirm London Hyde Park Gig On June 30
Bruno Mars Toasts Album Glory At London Cafe De Paris Gig
Really, Robert Pattinson? The Best (And Worst) Music Biopics Of All Time
Music Stars' Sex Tapes And Naked Photo Nightmares
Register now and have your comments approved automatically!