Johannesburg, July 20 - Long after legendary singer Kishore Kumar and music composer Rahul Dev Burman died, a secret about one of their biggest hits together has been revealed here.

Kishore Kumar's son Sumeet Kumar shared the story at a packed arena at Carnival City here Saturday night as he performed in the Sunidhi Chauhan show.

Before singing the song 'Dekha Na Hai Re' that was picturised on actors Amitabh Bachchan and Mehmood in the film 'Bombay to Goa', Sumeet said he would share the secret of how the refrain 'dole dole dole dole' (sic - four times!) in the song had been included.

'Dada (Burman) and Baba (Kishore Kumar) were in the studio trying to finalise the song and were having a difficult time trying to get the catch line.