By Your Side Jonas Blue feat. Raye Download 'By Your Side' on iTunes
Aston, Marvin, JB, Oritsé sing about their ex, who upset them so much that their doctor has told them that losing her could be the end of them.
In their huge No. 1 single the boys sing "let's just get back together, we should have never split up" but now, the very girl that has broken their hearts has responded with a track entitled 'Cheat Again'.
The response track has been posted on a MySpace profile belonging to a user calling themselves "JLX", have a listen to the song and let us know what you think below...