The song "Dum dum" from Yash Raj Films' "Band Baaja Baaraat" was originally composed for Shah Rukh Khan-starrer "Rab Ne Bana Di Jodi", says a source.

The song, sung by Himani Kapoor and Benny Dayal, was not used in "Rab Ne...".

"Since the 'Band Baaja Baaraat' team needed a similar track for the film, 'Dum dum' was used. So in a way it was a very special musical gift to director Maneesh Sharma from Aditya Chopra, " said the source.

"Band Baaja Baaraat", featuring Anushka Sharma and newcomer Ranveer Singh, is releasing Dec 10.