This year's weekender - the biggest free festival in Europe - will take place in Norwich. Tickets have now all been allocated - all 50,000 were give out in only 40 minutes.
Radio 1's Big Weekend takes palce 23/24 May.
The lineup in full so far is:
The Vaccines, Muse, Fall Out Boy, 5 Seconds Of Summer, Years & Years, Charli XCX, Ben Howard, David Guetta, Florence and the Machine, Slaves, Circa Waves, Hozier, Ella Eyre, Jess Glynne, Mallory Knox, Rudimental, Snoop Dogg, and Context.
Taylor Swift, Imagine Dragons, Catfish and The Bottlemen, Clean Bandit, George Ezra, Rita Ora, Jamie T, Olly Murs, Sam Smith, Sigma, alt-J, Raury, James Bay, SOAK, Lower Than Atlantis, Jungle and the Foo Fighters.