Singer Abhijeet Bhattacharya said he sang the song 'Tan Tana Tan' without knowing it was for Salman Khan in the 1997 comedy film 'Judwaa'. "I knew it was David Dhawan's song. I sang the song thinking it was for Govinda as David had never worked without him," he said. "You can't think of Salman for the song," he added.