The Feeling are playing on the Saturday - 10 May
http://news.bbc.co.uk/newsbeat/low/music/newsid_7358000/7358012.stm
30,000 fans are expected at Mote Park to enjoy more than 50 other bands and solo artists on 10 and 11 May.
Other acts taking part include The Fratellis, Robyn, Duffy, Scouting For Girls, The Feeling and The Hoosiers.
Listeners can register for tickets for one week from 8am on 21 April until 10am on 28 April.
See who is playing at Radio 1's Big Weekend
More than 470,000 people applied for tickets in 2007.
Organisers say demand is expected to be even bigger this year.
Register now for Radio 1's Big Weekend
Successful applicants will receive a pair of tickets for either Saturday or Sunday.
Gates open at 12pm and close at 10pm.
Local preference for tickets
Tickets will be allocated randomly, but weighted in favour of those living in Maidstone, Kent and the surrounding areas.
A smaller amount will be distributed nationally.
Listeners registering across the UK will also have the chance to win tickets via Radio 1 on-air competitions in the week before the event.
Other acts appearing on the main stage over the weekend include Nelly, Adele and Newton Faulkner, Goldfrapp, The Enemy, Pigeon Detectives and One Republic.
Throughout the weekend, all the main Radio 1 DJs will be broadcasting live from the event.
As well as introducing bands on stage they will be interacting with listeners online and on-site.