"Tell Me Something I Don't Know" is a song by Selena Gomez. It was released as a single on August 5, 2008 on iTunes. A Radio Disney version (which removes the Hurricane Katrina reference) was released on September 9, 2008, on iTunes. The song is on the Kidz Bop 15 CD. A new version of the song is on Selena Gomez & the Scene's debut album, "Kiss & Tell".