Scripted by Taylor Cohen, the film follows a former one-hit wonder who regains his love for music when he is hired to coach an aspiring singer for her audition on a singing competition, reported Aceshowbiz.
It will mark a feature film directorial debut of video and commercials director Nabil Elderkin.
Legend will also produce the upcoming movie.
"We look forward to working with this dream team we've assembled to deliver something special," he said. Production is expected to begin in September in Philadelphia, but no release date has been announced.