The Mack Nevada feat. Mark Morrison & Fetty Wap Download 'The Mack' on iTunes
Capital FM catch up with the 'Price Tag' star before her headline set at the O2 Arena.
Capital FM chatted with Jessie J ahead of her headline performance at the Capital FM Jingle Bell Ball.
The 'Price Tag' star spoke to Roberto in our video lounge where she took part in our snowball challenge, matching Jason Derulo's target of one.
Jessie also answered a host of questions from her Twitter fans, including one who wanted to know her advice about how to deal with bullies.
Jessie also spoke of her excitement at headlining the event at the O2 Arena.
Watch Jessie J talk to Roberto backstage at Capital FM's Jingle Bell Ball.