"Stay My Baby" is a pop song written by Max Martin, Tommy Tysper and Savan Kotecha as the second single from Amy Diamond's third studio album Music in Motion (2007). Produced by Martin and Tysper, the song was written for Diamond by special request from her management and released November 21, 2007. It reached number 1 on the Swedish Singles Top 60 chart. The song instrumental was included on the re-release of the album: Music in Motion/Gold Edition (2008).

The music video was recorded in city, Sweden, released on December 1, 2007.

A cover version of the song by Miranda Cosgrove was released as the second single from the iCarly soundtrack. A music video was also filmed and was directed by Jesse Dylan. The single failed to chart.

Cosgrove's musical career first began with her recording the theme song of the Nickelodeon television series iCarly called "Leave It All to Me," on which Cosgrove stars as the title character on the show. The song features her former Drake & Josh cast mate Drake Bell, and was written by Michael Corcoran, one of Bell's band members. Following the success of iCarly, Columbia Records released a soundtrack album of the show on June 10, 2008. The soundtrack album included "Leave It All to Me", "Stay My Baby", "About You Now" and "Headphones On". Miranda reached a D6 falsetto note in the beginning.

The track has been met with critical acclaim. The Teen Scoop said "Stay My Baby" is the best song on the iCarly soundtrack. Pop Nation said Miranda Cosgrove was fun and was an attractive singer in the same way he called like the protagonist in iCarly, stating that the song is amazing.

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