The Girlfriend singer, whose as yet untitled album is due for a March release, said that her new offering will reflect how much she has grown up since her last record.
The 26-year-old told MTV News, 'My single's coming out in January and it's called What The Hell. And my record's coming out in March, so I'm pretty excited.
'This album is different. I'm older now, so I think that comes across in my music, it's not as pop rock and it's a little more mellow and it's deep. But my first single is very 'up' and pop rock. The first single is very much like my older stuff, but the rest of the album is a departure.'