Singer Sonu Nigam shared a video of himself performing for doctors while undergoing surgery. He was seen singing Mohammed Rafi’s track 'Suhani raat dhal chuki, na jaane tum kab aoge' from the 1949 drama ‘Dulari’. "An impromptu performance for dear Dr Nilesh Satbhai and his loving team during my surgery...Singing in the pain...the Joy of Music," he captioned the post.