"Flower Power" is the sixth Japanese single released by South Korean girl group Girls' Generation. The single was released on November 14, 2012, via digital download on iTunes Japan, with a limited physical release on November 21, 2012. It serves as the third single from their second Japanese studio album, Girls & Peace (2012). Despite limited release, "Flower Power" sold 29,000 copies in its first week, peaking at number five on the Oricon Singles Chart; the single also reached number six on the Billboard Japan Hot 100.

After the success of the preceding singles, "Paparazzi" and "Oh!", both of which took the number one spot on the Oricon daily singles chart and sold a collective total of more than 190,000 copies, the group's follow-up single "Flower Power" was announced on October 2, 2012. "Flower Power" was released in Japan on November 14, 2012, two weeks before the release of their second Japanese studio album. A concept photo released by the group's Japanese label shows the group trying to escape searchlights.

The song is mainly in Japanese with interspersed English phrases. The first two lines go as follows:

The single was not released physically until November 21 because of problems with production. The single's B-side, "Beep Beep," is not included on Girls & Peace (2012), but it is included as the sixth track on their third Japanese studio album, Love & Peace (2013), released on December 11, 2013. The single also contains a medley of the accompanying album which features Jamaican rapper Sean Paul.

"Flower Power" is written by Johan Gustafson, Fredrik Häggstam, Sebastian Lundberg (who composed labelmate TVXQ's "Blink"). It is an up-tempo electropop and dance-pop number, taking influences from trance and electro house, with a "flowing" bassline and a chorus line demonstrating the "sexy side" of Girls' Generation, contrary to the single's title. Lyrically, the song describes "the strategic moves between a man and a woman on the dancefloor," sung by the group with "the sound and light of a glitzy atmosphere."

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