You Hee-yeol's Sketchbook
A Korean version of "Mr. Taxi" was released on December 8, 2011, as the lead single from the group's reissue of their third Korean studio album, "Mr. Taxi" (2011). The group promoted the single prior to its release on various Korean music shows, including Music Bank, Show! Music Core, Inkigayo, and M! Countdown. "Mr. Taxi" received its first performance as a single on You Hee-yeol's Sketchbook broadcast on December 2, 2011. "Mr. Taxi" is an electropop and R&amp;B song.