"Take Back" is a song recorded by Japanese singer-songwriter Kumi Koda, taken as her debut and lead single from her first studio album Affection (2002). It was released on December 6, 2000 via Rhythm Zone in two physical editions; a CD single and 12" vinyl. Additionally, Sounday and Orpheus Records distributed the song in North America in May 2001 with four more formats, but was remixed as a dance number by Jonathan Peters. The track was written by Koda herself, composed by Kazuhito Kikuchi and produced by Max Matsuura. The result was finalized after she had won a competition to find another artist for the Avex Trax company, which later published Rhythm Zone under Matsuura's guidance.

Musically, "Take Back" is an R&B number that incorporates elements of pop and electronic instrumentation, such as keyboards and synthesizers. Her inspiration towards the track was based on her interest with J-pop, and their revolving culture with the R&B scene, particularly with her admiration of label mate M-flo. Because an English version was adapted for the Jonathan Peters' remix, she re-wrote it with Kikuchi. Upon its release, the single received positive reviews from music critics, who commended the sound and production, but understood its lack of general interest with the Japanese market.

Commercially, "Take Back" experienced minimal success in Japan, reaching number 59 on the Oricon Singles Chart. Despite its lower peak, it fared better in the United States, where it charted inside the Dance Club Songs, Dance/Electronic Singles Sales and Hot Single Sales categories, all published by Billboard. In order to promote the single, Koda featured in its accompanying music video, directed by Toku, which featured her in various rooms with back-up dancers and singing the track. Furthermore, the singer performed it on various concert tours such as Best: First Things Live, Black Cherry and her 10th Anniversary tour, and made an appearance on her greatest hits album Best: First Things (2004).