Crystal Castles complete line-up for 2009's Belsonic festival

The full line-up for Northern Ireland's biggest music festival now features Dizzee Rascal, Vampire Weekend, Crystal Castles, 2manydjs and Two Door Cinema. Duke Special is also on the bill, curating his own special 'festival within a festival' called Dukebox, which will feature the likes of Bell X1, The Magic Numbers, David Kitt and Jerry Fish and the Mud Bug club. The event takes place at Befast's Custom House Square over the August Bank holiday, commencing on Thursday 27.

Belsonic is no stranger to international acts of such calibre though, with last year's event having boasted the likes of The Flaming Lips, The Zutons and Mogwai. Tickets for what will almost certainly be the rockinest festival of the year in Belfast have been on sale since July 1, priced at £29 per day plus booking fees and available through Ticketmaster and usual outlets.