Jessie J: 9 tracks for Justin Timberlake

Jessie J has revealed she's worked on nine tracks for Justin Timberlake.

Speaking about the collaboration, she told The Sun: 'We wrote together recently...we wrote nine tracks.'

Jessie added that her other songwriting efforts had been unsuccessful.

'I recently wrote a track for Britney and I loved it but she didn't use it for her album'.

Jessie has previously written songs for Miley Cyrus and Chris Brown.