The love song "Teri Orr" is from the 2008 film Singh Is King starring Akshay Kumar, Katrina Kaif, Priyanshu Pandey among others. The film is directed by Anees Bazmee and music score is by Pritam.

About the singers Rahat Fateh Ali Khan and Shreya Ghoshal.
Rahat Fateh Ali Khan: Rahat Nusrat Fateh Ali Khan (b. 1974) is a Pakistani musician, primarily a singer of Qawwali, the devotional music of the Sufis. He is the nephew of the late Ustad Nusrat Fateh Ali Khan. In addition to Qawwali, he also performs ghazals and other light music. He has toured extensively and performed in Pakistan, India and all around the world.
Traditionally, Qawwali has been a family business. Rahat's family has an unbroken tradition of performing Qawwali for more than 600 years. Rahat took over the family Qawwali party after Nusrat's death in 1997. (Nusrat had formally nominated Rahat as his successor during his lifetime).

Shreya Ghoshal: Shreya Ghoshal was born March 12, 1984 in a Marathi-Bengali family. She grew up in Rawatbhata, a small town near Kota, Rajasthan. Her father works in Bhabha Atomic Research Center as a nuclear power plant engineer for the Nuclear Power Corporation of India while her mother is a post-graduate literature student. She performed several songs in Bollywood, regional films and also for Indian soaps like Kasturi. She caught the attention of film director Sanjay Leela Bhansali when she participated in Sa Re Ga Ma Pa for a second time, this time competing against adults. In 2000, He offered her the opportunity to be the voice of Paro, the lead female character of his film Devdas, who was to be portrayed by Aishwarya Rai. Shreya sang five songs in the film. She targeted doing good work and has won many awards (8 Awards in a single year including a National Award). She also received many accolades for the song 'Mere Dholna' from Bhool Bhulaiya. She is the only playback singer to have been nominated in 4 out of the 5 nominations for the best playback singer for her songs in 2008 in IIFA 2008.
Besides Hindi, she has also sung songs in Bengali, Kannada, Malayalam, Marathi, Tamil and Telugu. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.