Talking to a leading English daily, Gopi Sunder himself has confirmed the news. The young musician says that he has a very good relationship with Vishal-Shekhar, who are the composers of Chennai Express and has also done programming for their Om Shanti Om. Recently, he was in Mumbai to do the programming for the film Chennai Express, when he got an offer to sing a song for Shahrukh Khan.
While chatting with the duo, Shekhar, who thought that his voice would match Shahrukh's, asked Gopi Sunder whether he could sing a song for the actor. The Malayalam musician sang a duet with Chinmayi and it was liked and approved by the duo and the superstar. Gopi says, "Shahrukh heard the song and said that he liked it too and that the match was good. I feel very happy to be his voice."