Music fans in north Wales will get priority for the festival's 40,000 free tickets
Florence & The Machine, Rihanna, Alicia Keys, Dizzee Rascal, Pendulum and Cheryl Cole will all perform at BBC Radio 1's Big Weekend in Bangor, on 22 and 23 May.
Chris Moyles unveiled the line-up of over 30 UK and international artists who will be playing on the two main stages during his show, with a bit of help from fellow Radio 1 DJ Zane Lowe.
Other artists include Scouting for Girls, Biffy Clyro, JLS, the Lostprophets, Kids in Glass Houses and Marina & The Diamonds.
BBC Radio 1's Big Weekend is the station's flagship event and the UK's biggest free ticketed festival. Around 40,000 fans can enjoy performances from four stages in Vaynol Estate - the Main Stage; the In New Music We Trust Stage; the Outdoor Stage and the BBC Introducing Stage.
For listeners tuning in there will also be exclusive Live Lounge sessions broadcast from backstage.
TV and radio
Jason Carter, Radio 1's editor for live music and events, says: "We've pulled out all the stops for our tenth BBC Radio 1's Big Weekend with an outstanding line-up of the best UK and international talent, along with new and emerging artists.
"It's a great opportunity to put a national focus on north Wales as Radio 1 brings two days of distinctive programming encompassing the very best live music, fantastic sets and some original collaborations."
For those who aren't lucky enough to get a ticket there will be coverage on radio, online, TV and the red button.
"We're very proud to welcome these talented artists to Gwynedd," said Iwan Trefor Jones, corporate director of Gwynedd Council. "We look forward to showing the world what makes Gwynedd a great place to live, work and visit."
Registration for tickets is open until 7pm on Monday 3 May at
There are 40,000 tickets available across the weekend. Tickets are free, but last year over 350,000 people applied for them and demand is expected to be huge again this year.
Each lucky applicant will receive a pair of tickets for either Saturday or Sunday. Tickets will be allocated randomly, but weighted in favour of those living in Bangor and across north Wales, with a smaller amount distributed nationally.
On Wednesday (28 April) Huw Stephens' Radio 1 show (9-10pm) will announce the bands and venues for the fringe events in the run up to the Big Weekend, while the line-up for the Outdoor Stage will be announced by Annie Mac on Thursday while she deputises for Fearne Cotton (10am-1pm).