"Glee" is adding a bit of "X"-appeal this season.
Pop star and "X Factor" judge Demi Lovato will join Fox's musical comedy this fall in a major guest-starring role that has her playing a pal of Rachel Berry (Lea Michele). According to TVline.com, Lovato will also interact frequently with Adam Lambert's incoming character, and the pair will have several musical numbers together.
"I just heard the news! Excited to sing w you girl!" Tweeted Lambert.
Lovato reportedly will appear in at least six episodes, beginning with the second part of the show's Beatles' tribute, airing Oct. 3.
Fox surely will do everything it can to take advantage of cross-promotional opportunities. The "X Factor" results show airs right before "Glee" on Thursday nights this season.