Lou Reed plays "Heroin" solo on a Klein guitar.
The original version of "Heroin," which was replaced by a rerecorded version for the album release.
Idol reinterpreted the song as a dance number; allmusic.com calls it the worst cover of all time, but you be the judge.
This video, shot by Andy Warhol, is more typical of the films that the artist was creating during the time that The Velvet Underground were associated with him.
Where'd John Cale's distinctive viola sound come from? This guy.