Glee cast members are reacting to Demi Lovato appearing in the upcoming fifth season of the show on Fox. Fox has yet to make a official announcement, but according to several sources Demi Lovato has signed for many episodes. Lovato will be assuming the role of Dani, a struggling artist.

According to NBC News the fifth season of the show went into production after the death of Cory Monteith. Also his death will be incorporated into the third episode of the season.

TV Line Demi Lovato, the actress-singer and judge on X Factor, is actually nearing a deal to join Glee. TV Line reports (according to their sources) that Lovato will most certain portray Dani, a struggling artist from New York City. Her charter is friend to Rachel and Santana. TV Line also reports that Lovato's character will have much interaction with Adam Lambert's character, including many musical numbers.

Adam Lambert Tweeted this about Demi Lovato joining the cast:

Naya Rivera also Tweeted this regarding Demi Lovato joining the cast:

"Glee" returns to Fox on Thursday, Sept. 26 at 9p.m. with Lovato's character making an appearance during the Beatles tribute on October 3.

Below is Demi Lovato's music video of Heart Attack