One Heart is a concert film featuring 15 most-loved and popular songs by A R Rahman. The film is punctuated by a series of in-depth interview with A R Rahman and unseen personal clips who shares with us his thoughts about performing on-stage, how he came to choose the band that toured with him in 14 cities in America and the humility he feels when armies of his fans shower love on him. Through his performance, AR brings the arena alive, evoking old memories and exciting his fans across generations. In One Heart you see AR Rahman up-close, the very private man behind his iconic figure. The proceeds from the movie will go to Rahman's One Heart foundation to help old musicians and their families.