I think this is a such a great comedy moment for the music industry just now, don't you think so?
He releases a song called 'Don't Want You Back' directed at his x and she releases a song with a very similiar sound track just with a bit of dischord to make it sound quite bad really, and calls something like 'Fuck You Right Back' and is directed straight at him and basically rips him to shreads!
I think that is absolutley hilarious, I wonder who's laughing now? Probably both of them!
If you haven't already heard these two songs then you really should!