"R U Mine?" is a song by the English indie rock band Arctic Monkeys. It was written by Arctic Monkeys vocalist Alex Turner and bassist Nick O'Malley. The song was released as a digital download in the United Kingdom on 27 February 2012 and was released physically for the Record Store Day on 21 April 2012 on a limited edition double A-side purple 7" vinyl along with new song "Electricity". The vinyl was limited to a run of only 1750 copies. "R U Mine?" debuted at number twenty-three on the UK Singles Chart; the band's highest charting single since "Crying Lightning" reached number twelve in July 2009. Despite originally being released as a standalone single, the song was later included on their fifth studio album, AM (2013), in a slightly different version. It was later certified gold in the UK, making one of the Arctic Monkey's best-selling songs. The song was also featured in the video games Forza Horizon and Rocksmith 2014. It was also featured in the videogame Guitar Hero Live. It was released as a downloadable song for the rhythm game Rock Band 3 on January 13, 2015; one of the first three downloadable songs released for Rock Band 3 in almost two years.