More names have been added to the Give It A Name line up.
Plain White T's, The Audition, The Blackout, Cobra Starship and State Radio are the new acts who join the likes of Paramore and 30 Seconds to Mars.
London Earls Court and Sheffield Arena host the event on Saturday May 10 and Sunday May 11.
The line-up so far is as follows:
London Saturday May 10/Sheffield Sunday May 11
Paramore
Plain White T's
Special Guests
Finch
Set Your Goals
Strike Anywhere
Chiodos
Second Stage:
The Audition
All Time Low
My American Heart
Special Guests
Mayday Parade
Meg And Dia
Sheffield Saturday May 10/London May 11
30 Seconds To Mars
Billy Talent
Glassjaw
Silverstein
Cobra Starship
The Blackout
Envy On The Coast
Second Stage:
Anti-Flag
Armor For Sleep
You Me At Six
State Radio
The Color Fred
Four Year Strong
Tickets are on sale now.