The Who Hits 50! is a compilation of singles by the English rock band the Who, released in 2014 by Polydor Records. The two-disc set contains every single released by the band in the United Kingdom, with the exceptions of: "A Legal Matter" and "La-La-La-Lies" from 1966; and "Long Live Rock" and the remake of "I'm One" from 1979. At the same time it also contains every single by the band released in the United States throughout their career, with the exceptions of: "The Real Me" from 1974; the reissue of "Substitute" from 1976; and "Long Live Rock" from 1979. A condensed single-disc standard edition appeared as well, both versions in conjunction with the band's 50th anniversary and associated tour of the same name. The album is notable for containing singles generally not included on other compilation albums, such as the band's Rolling Stones cover "The Last Time" done as an act of solidarity while Mick Jagger and Keith Richards were facing jail time, along with other lesser-known singles "Dogs" and "Call Me Lightning".

"I'm a Boy" is a 1966 rock song written by Pete Townshend for the Who. The song was originally intended to be a part of a rock opera called Quads, which was to be set in a future in which parents can choose the sex of their children. The idea was later scrapped, but this song survived and was later released as a single.