"Run Devil Run" is Girls' Generation's fourth Korean digital single. The song is the title track to their repackaged second studio album of the same name, and was used as the lead single. The cover art of the repackaged album was also used for the digital single. A Japanese version of the song was released almost one year later as their first Japanese digital single. A promotional picture from Run Devil Run's promotions was used as cover art. American artist Ke$ha recorded in 2008 a guide track of "Run Devil Run" which leaked on YouTube and was never released.