"Be Mine" (내꺼하자 Naekkeohaja) is a song released by the South Korean boy band Infinite. The song is the title track of the group's first studio album Over the Top, released on July 21, 2011. The song is also the second Japanese single of the group. It was released in April 18, 2012 in 4 different editions.

The song was written by Song Sooyoon and produced by Han Jaeho and Kim Seungsoo (also known as Sweetune), which also produced songs for the groups Kara, f(x), Rainbow, SS501, Nine Muses and more. A remix version of the song was released on the studio album Paradise, a repackaged version of the album Over the Top.

The group started promoting the track in July 23, 2011 on the MBC's Show! Music Core and they also promoted in the music shows M! Countdown, Music Bank and Inkigayo. The songs "1/3" and "Amazing", from the album Over the Top, were used for the special comeback week performances. The first music show award for the song (and also the first award for the group since their debut in 2010) was on September 1, on the show M! Countdown, and they won another award on the following week. On September 2, the group promoted the title song in a remix version until September 11. The promotions of the song ended on September 18.

A teaser of the music video was released in July 15 and the full video on July 20, on the Woollim Entertainment's YouTube channel. A dance version of the video was released in July 31. The group label, Woollim Entertainment, revealed a practice video of the group performing the song in August 11.

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