(7KM music) The official word on "Kalinka"

As reported earlier, "Darrling", the song that accompanies the trailer of 7 Khoon Maaf is based on a Russian folk song called "Kalinka". This news report makes the additional clarification and assuages any potential misgivings about plagiarism:

Vishal confirmed using the Russian track, "Yes, it is based on Kalinka, which is a centuries-old Russian folk song. In fact, original Russian words have also been used in the song as one of the husbands happens to be a Russian." He adds, "It has been used in a lot of films around the world." We hear that he even flew down four Russian singers to sing the Kalinka song. They are also given credit in the album.