"UFO 2: Flying", sometimes referred to simply as UFO 2 or Flying and subtitled Space Rock, is the second studio album by the English rock band UFO. Released in October 1971 by the Beacon label, it was later issued on CD in 1999 by Repertoire Records.
The album is notable for its title track, which was one of the longest in rock music at the time and remains the longest track the band ever recorded. The track concludes with a backmasked reading from Rudyard Kipling's Gunga Din, featuring the line "Tho' I've belted you an' flayed you, By the livin' God that made you, You're a better man than I am, Gunga Din!" along with a slowed phrase, "Yes we know, it's all been done before before before."
UFO 2 was also included in the 2004 compilation album Flying: The Early Years 1970–1973, which features all recordings made with the band's original guitarist, Mick Bolton.
