"Mr. Taxi" is the first original Japanese song recorded by South Korean girl group Girls' Generation. It was released as a double A-side single with the Japanese version of "Run Devil Run" on April 27, 2011 as the third single from the group's eponymous debut Japanese album. Written by Allison Veltz, Paolo Prudencio, Chan Royce, and Scott Mann, and produced by STY, "Mr. Taxi" is an electropop and R&B song. A Korean version was later recorded and included on the group's reissue of their 2011 Korean album The Boys.
