Sheryl Crow is always up for a good jam session, and now she can add the artist known as The Artist (and formerly known as Prince) to her list of onstage collaborators.

The Artist joined Crow onstage on Sunday night at the Lilith Fair's stop in Toronto, playing guitar and singing on her hit "Everyday Is A Winding Road."

In recent months, Crow has shared the stage with Eric Clapton, Bob Dylan, June Carter Cash, Semisonic, Willie Nelson, Sarah McLachlan, the Pretenders' Chrissie Hynde, not to mention the other Lilith performers during the Fair's nightly all-star finale.

In other news about The Artist, his former label, Warner Brothers, will be releasing "The Vault... Old Friends 4 Sale," on Tuesday. "Vault" is a collection of ten previously unreleased tracks, some dating back to 1985 (see "Warner Bros. Mines 'Vault' For New Prince Album").

If you're curious to see if Crow welcomes another famous face onstage, here are her remaining dates on 1999's Lilith Fair:

  • 8/25 - Minneapolis, MN @ Canterbury Park
  • 8/26 - Bonner Springs, KS @ Sandstone Amphitehatre
  • 8/28 - Denver, CO @ Fiddler's Green Amphitheatre
  • 8/31 - Edmonton, AB @ Commonwealth Stadium