Coming straight from the MTV VMAs to perform with Taylor, was rapper [lastfm link_type="artist_info"]Nicki Minaj[/lastfm]. The two performed a toned down version of “Super Bass,” a favorite of Taylor’s.

The combination of the INSANE crowd tonight and @NICKIMINAJ joining me onstage for "Superbass" = #IwishthatIcouldhavethismoment4life—
  (@taylorswift13) August 29, 2011

With all these special guests, I hope Taylor cuts a DVD at the end of her tour!