This week’s season finale of The X Factor will feature the final three acts -- Tate Stevens , Carly Rose Sonenclar and Fifth Harmony -- performing duets with celebrity musicians.

On Wednesday’s final performance show of the season, Tate Stevens will duet with the country quartet Little Big Town , while 13-year-old Carly Rose Sonenclar will sing with LeAnn Rimes .  The girl group Fifth Harmony will perform with X Factor judge Demi Lovato .

Simon Cowell mentored the girl group this season, and told reporters Monday he finds Fifth Harmony’s decision to duet with his judging rival “kinda irritating.”

On last season’s X Factor , Avril Lavigne , Alanis Morissette and R. Kelly joined finalists Chris Rene , Josh Krajnik and Melanie Amaro , respectively.

The final two-hour live performance show airs Wednesday at 8 p.m. Eastern time on Fox.  The winner will be announced on Thursday’s two-hour live finale.

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