Call her a 90210 guest star.

The CW drama has snatched up the hottest young singer on the planet for an upcoming guest-starring spot, as TV Line reports Carly Rae Jepsen will perform on the 90210 Season 5 premiere.

Jepsen will actually perform a new track on episode, one off her upcoming album. She'll appear as the headliner at Adrianna’s Las Vegas show.

“We fell in love with her song when we first heard it, and used it in last season’s finale before it was a national sensation,” 90210 executive producers Patti Carr and Lara Olsen told TV Line. “We think she’s an exciting artist and are thrilled to be able to have her music on the show again, this time in a live performance in our season premiere.”

This is the same installment, scheduled to air October 8, on which Justin Deeley is expected to make his final appearance as Austin.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.