"Twi-hards" can rejoice now that the cat has been out of the bag as to when they can pick up a copy of the soundtrack for the final "Twilight" film, "Twilight Saga: Breaking Dawn- Part 2." Guest appearances on the soundtrack include "Twilight" actress Nikki Reed, who plays Rosalie Hale in the films, for her singing debut. The track, "All I Ever Needed" is a duet with her husband Paul McDonald who was a contestant on "American Idol." Rock legends Green Day lend their vocals to the album's lead song, "Forgotten Day." The band shared their excitement about reaching out to a newer, younger audience for the soundtrack.