High Quality Content by WIKIPEDIA articles! Ra.One is the soundtrack album, composed by the duo Vishal-Shekhar, to a 2011 Indian science fiction film Ra.One, written and directed by Anubhav Sinha, and starring Shahrukh Khan, Kareena Kapoor, Armaan Verma and Arjun Rampal in the lead roles. It also stars Shahana Goswami, Dalip Tahil and Chinese-American actor Tom Wu in supporting roles, along with Rajinikanth, Sanjay Dutt and Priyanka Chopra making guest appearances. The film is jointly produced by Eros International and Khan`s production company, Red Chillies Entertainment, and was originally scheduled to release on June 3, 2011. However, due to extensive post-production work involving special effects and the 3D conversion, its release was postponed, and saw a worldwide opening during the Diwali weekend of October 26, 2011. The album features fifteen tracks, and was released on 12 September 2011 by T-Series.