Who sings the fame song in 2009 movie?

The fame (2009) movie features two versions of the song "Fame":

1. The original version of "Fame" sung by Irene Cara, which was released in 1980 and used in the movie's soundtrack.

2. A cover version of "Fame" sung by Glee Cast which is a mashup with "Let It Go" and appears during a performance in the movie.