Shahrukh Khan which work, he don't want to do it again

Shahrukh Khan is working in Bollywood for 25 years. So with his acting he has won the title of King Khan. There is a thing in his career, that he will never do. You must be knowing, There was a film of Shahrukh Khan Josh, in which Aishwarya Rai was his sister. There was a song in this film 'Apun Bola Tu Meri laila' which was hit, this was sung by Shahrukh only. In film Jab Tak Hai Jaan, he has read a poem in his voice. When Shahrukh Khan reached as a guest in Musical realtiy show Sare Gama Pa, then he said, 'I still remember that day when I was recording 'Upun Bola Tu Meri Laila'. This is one thing which I will do never. So salute to all those singers who have sung hit songs for me.'