Actress Kristen Stewart is hating on Katy Perry over the role of Queen front man Freddie Mercury's BFF, Mary Austin. Austin was in a six year relationship with Freddie before he admitted his preference of men.

The role in the untitled Freddie Mercury movie is bringing out some of the biggest names in Hollywood and music, like Stewart, Perry and Lady GaGa. They all desperately want the part, and it's getting ugly!

With the girls fighting like this, it's just hurting their chances of getting the part and at the end of the day, Sacha Baron Cohen (who wil be playing Freddie) will have the final say in which woman gets the role.

(photo credit 93.3flz.com)