The T4 On The Beach party will take place once again this year, and JLS was one of the first acts announced to be taking part.
Also confirmed are Tinie Tempah, N-Dubz and Jason Derulo, others will be revealed on T4 over the weekend. The T4 annual pop extravaganza is now in its eighth year.
This year the one-day event will take place at Weston-super-Mare on 4th July.