Written in 1969 by Bonnie Bramlett, Delaney Bramlett and Leon Russell, this song was originally recorded by Delaney, Bonnie and Friends under the title "Groupie (Superstar)". It tells the story of a groupie who falls in love with a rock star after having a sexual fling with him, believing him when he tells her that he loves her and that he'll back for her when, of course, he's moved on to the next town and the next groupie. It is rumored that this song is about Eric Clapton who, coincidentally enough, played guitar on the original Delaney, Bonnie & Friends recording.
The Carpenters version may be the best known and most recognized cover of this song, but I really like this Sonic Youth cover. It really captures, for me, that nightmarish stalker mentality.
Superstar by Sonic Youth from the 1994 Carpenters tribute album "If I Were a Carpenter" and the 2007 soundtrack album from the movie "Juno"
Sonic Youth website
Sonic Youth MySpace page
If you'd like to hear the original Delaney, Bonnie & Friends with Eric Clapton on guitar, Leon Russell on keys and Rita Coolidge on backing vocals, here it is: