Exclusive: Behind the scenes with Sonam Kapoor and Fawad Khan on sets of 'Khoobsurat'

After hrs caught Sonam Kapoor and Fawad Khan as they got grooving for their latest track 'Maa Ka Phone' for their yet to be released film, 'Khoobsurat'. Sonam revealed that she is singing the song only in the video, but hasn't lent her voice to 'Maa Ka Phone'. Sonam says, "I have this special ringtone for every time my mother Manju (Kirron Kher) calls me and it goes 'Ma Ka Phone Ma Ka Phone' on loop. We liked the ringtone so much that we thought of weaving a fun track around it!” Mothers play a very important part in the film. Sonam adds, “Fawad (Khan, her co-star) and I are both very close to our mothers in the film. But while I have a friendly bond with mine, his has a more business-like relationship with his mother (Ratna Pathak Shah).” She continues, “My mom calls me every two minutes to know what am I doing, how am I and all. She is a little clingy and even ruins my romantic moment with Fawad!”