Chiranjeevi has signed multiple films at once and one among them is Godfather. Now, a crazy rumor that is doing rounds about the movie is that Hollywood singer Britney Spears will be crooning a song for this movie. This buzz has come out of nowhere and surprised everyone. Though nothing is announced officially, there could be a chance of this happening if the song demands such a popular and talented singer. Thaman who is composing the music is in great form and Britney Spears joining him could result in an instant chartbuster.