The public feud between Britney Spears and Justin Timberlake looks set to continue.
Britney is rumoured to be getting back at her ex by writing a revenge song.
This comes after Justin had a barely-disguised dig at her in his hit, Cry Me A River.
Getting her own back
In it, he hints that Britney cheated on him and that's why their relationship fell apart after more than four years together. He says he'll never take her back, however much she cries.
But now Britney's getting her own back.
It's said that the pop princess has written a track called ClubSong, and it's all about her first love. Rumours say it could appear on her next album.
'Twisting the story'
The lyrics say:
The Britney 'lookalike' in Justin's video
"Once upon a time there was a little boy who tried so hard to be down.
"Playing me publicly, twisting the story, see, made it the talk of the town.
Then she sings: "Cry me..Cry me...done. Here's a bridge to walk over it too."
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