Mary J. Blige was so nervous about appearing in her first movie - Tyler Perry's I Can Do Bad All By Myself - she took acting classes to help her performance.

The writer/director wrote the part with Mary J. Blige in mind and even asked her to come up with the film's theme, which her character sings in the movie.Mary J. Blige says, I went and got an acting coach and it helped a lot.The R&B superstar plays the tough-talking best friend of the film's star Taraji P. Henson - and admits the role wasn't too much of a stretch: I am a good friend; when I love you I love you hard.