"She's No You" is the second single in Jesse McCartney's debut album, Beautiful Soul.
McCartney, who co-wrote the song, says he was in a caffeine "buzz" when he wrote it, hence the fast pace it has.
The radio edit was packaged into the 2006 Hannah Montana soundtrack CD.
The same year, a remix produced by The Neptunes was included on the soundtrack album That's So Raven Too!.
The video is basically Jesse trying to find Katie, walking down streets, crossing roads, etc.