Avril Lavigne Performs Duet on Star-Studded ‘X Factor’ Finale (VIDEO)

Avril's Bikini Party
Lavigne and pals lounge on a yacht.
Leave it to The X Factor to go out with a bang.

The hit reality-competition series aired part one of its inaugural season finale last night, which featured everything from epic performances, to high-class drama to surprise guest performances.

Among the celebrities who took the stage last night was pop superstar Avril Lavigne, who performed her top 10 single ‘Complicated’ with finalist Chris Rene. (Alanis Morissette and R. Kelly performed with Josh Krajcik and Melanie Amaro, respectively.)

Will Avril’s appearance help Chris become America’s first X Factor winner? Check out a clip from his duet now, then be sure to check out the conclusion of the show tonight at 8PM on Fox.