Virtual Festivals are giving you the chance go win a pair of tickets for this year's Surfstock.

Celebrating its fifth birthday this August, the soiree in the sunshine will have some of the world's biggest acts heading down to West Cornwall for the weekend including The Gossip, Santogold and The Go! Team.

5,000 revellers are set to enjoy over 50 live acts over the two days with six eclectic music arenas to choose from. Black Lips, Lightspeed Champion, Nathan 'Flutebox' Lee, Chromeo and Alphabeat are also set to perform over the two days. Surf's up!

For your chance to win a pair of tickets to Surfstock, simply answer the following question:

• Surfstock 2008

Who sang 'Surfin' USA'?