Katrina Kaif is reportedly singing a song in ‘Dhoom 3′ as well as in Yash Chopra’s untitled directorial venture. Ranbir Kapoor is also rumored to be singing in ‘Barfi!’. However, Priyanka Chopra, who probably has better credentials as a singer what with having recorded an international album, will not be singing in ‘Barfi!’ as was previously reported. Why ever not, you might ask. She hasn’t turned shy suddenly and neither is she playing pricey. It’s merely that Priyanka’s contractual obligations on the aforementioned international album don’t allow her to sing for a film until the album is released. Hopefully, her album will release before the ‘Zanjeer’ remake and she can sing for that film if not for ‘Barfi!’.