'Price Tag' star recording second album

Jessie J is in the studio with Sia and Diane Warren.

The 'Price Tag' star is currently recording her second album, and tweeted from the studio where she is writing with Norwegian production team Stargate, 'Titanium' star Sia and Diane, famed for writing ballads for Celine Dion, Aerosmith, LeAnne Rimes and Toni Braxton.