Stand! is a song written by Sylvester "Sly Stone" Stewart and originally performed by Sly and the Family Stone, which first appeared on their 1969 album Stand! The song has been performed occasionally in Prince's live shows from 1998-2011.
A live video version of the song, recorded on the Welcome 2 Canada Tour, on 8 December 2011, was streamed on bandmember Andy Allo's Facebook page within hours of its performance (Allo, however, does not appear on the video).
No studio version by Prince is believed to exist.