James Hibberd
November 09, 2011 AT 06:27 AM EST

Two bits of X Factor scoopage: You may have heard that Willow Smith is performing Thursday night on Fox’s hit reality competition. But EW has learned that Brit singer-songwriter Jessie J is also appearing on the show.

Not only that, but tomorrow’s live Factor results show will have the Top 11 finalists performing songs from hit movies.

Jessie J will perform her second U.S. single “Domino” while Smith will perform “Fireball.” Jessie J just made waves in the UK papers yesterday for — get this — knocking UK’s version of The X Factor. She called the Brit version “bitchy” and instead has agreed to be a mentor on a new BBC singing competition called … The Voice — the UK version of the reality format that NBC launched earlier this year. Well, on this side of the pond, Fox has Jessie J all to themselves.

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