"Runaway Baby" is a song by American singer and songwriter Bruno Mars, which appears on his debut studio album Doo-Wops & Hooligans. It was written by Mars and Brody Brown and produced by The Smeezingtons. The song peaked at number 19 on the UK Singles Chart on October 30, 2011, after Mars performed the song on The X Factor results show on October 30, 2011. "Runaway Baby" was used as the opening theme for the film Friends with Benefits. The song was also used for a trailer of the movie Escape from Planet Earth in 2013. The song was added to Australian radio Nova 100, on the week of February 15, 2012.