"Radio Song" is a song by American rock band R.E.M., released as the fourth single from their seventh album, Out of Time (1991), where it appears as the opening track. Lead singer Michael Stipe once said that he hoped everyone had enough sense of humor to realize that he was "kind of taking the piss of everyone," himself included. Stipe also asked KRS-One, leader of Boogie Down Productions, to contribute to the track. He provides some backing vocals for the track, as well as a closing rap, and appears prominently in the video.

Out of Time is the seventh studio album by American alternative rock band R.E.M., released on March 12, 1991, by Warner Bros. Records. With Out of Time, R.E.M.'s status grew from that of a cult band to a massive international act. The record topped the album sales charts in both the United States and the United Kingdom, spending 109 weeks on U.S. album charts and, with two separate spells at the top, and spending 183 weeks on the British charts, including one week at the top. The album has sold more than four and a half million copies in the United States and more than 18 million copies worldwide. Out of Time won three Grammy Awards in 1992: one as Best Alternative Music Album, and two for its first single, "Losing My Religion."