The song will be launched Friday and the filmmaker is "dying to share it" with all his fans.
"One of my favourite love songs from a Dharma (Dharma Productions) film will release tomorrow (Friday) 'Zahnaseeb' from 'Hasee Toh Phasee'. Dying to share it with all of you," Karan posted on Twitter Thursday.
Featuring Parineeti Chopra and Sidharth Malhotra, the romantic track is sung by Chinmayi Sripaada and Shekhar Ravjiani.
The film has been directed by Vinil Matthew.
--IANS (Posted on 02-01-2014)