Selena Gomez plays an all-singing, all-dancing chambermaid in the music video for Tell Me Something I Don't Know.

The song is taken from her upcoming movie, Another Cinderella Story - and suggests fellow tween sensation, Miley Cyrus, has some tough new competition.

Of her yet-to-be-released record, Selena has said, "I basically want to make music that is fun and that parents and kids can jump around to and have a good time to.

“I will be singing, and I'm learning drums and playing electric guitar."

Check out the video below & be sure to let us know what you think!