"Baby Baby" is the fourth single from album Girls' Generation and later became a title track of its repackaged version with the same name by South Korean girl group Girls' Generation. It was released on March 17, 2008 through SM Entertainment.

It was the lead single of the repackage of Girls' Generation, titled Baby Baby who was released on March 17, 2008. The album was released in two versions, each edition features the same contents, however the cover art used for one of them was used as back cover for the other one, and the other way around. A MV for "Baby Baby" was released as well, containing scenes of the Making of video of the Girls' Generation MV, and footage of the girls working on their first album.

The song was written and produced by Hwang Seong Je (BJJ) and Yoo Jenny.

Girls' Generation had their comeback performance on Music Bank, on March 21, 2008. The group also performed "Baby Baby" on various music shows such as Music Core, Inkigayo and M! Countdown in March and April.

The album promotions was concluded on April 13, 2008 at Inkigayo.

The music video for "Baby Baby" was released on March 17. The Music Video consists of behind the scene footage from other music videos.

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