Canadian 8-bit duo Crystal Castles have been announced to play BeatDay festival in August.
Ladytron and The Raveonettes will also play the two-day festival as organisers reveal the full line-up.
The latest acts announced join headliners Mew and Arctic Monkeys at the festival.
The full line-up is as follows:
Friday 14 August
The Ting Tings
Oh No Ono
Choir Of Young Believers
Saturday 15 August
Band Of Horses
The Temper Trap
Beatday 2009 will take place in Copenhagen's Valby Park from 14-15 August.