Katrina Kaif was an unexpected guest at producer Siddharth Roy Kapur and Vidya Balan's bash for Yeh Jawaani Hai Deewani cast at Roy's Juhu home on Sunday
Ranbir Kapoor, Kalki Koechlin and Aditya Roy Kapoor who star in the film were present. However, Deepika Padukone, the heroine of the film was conspicuous with her absence.
Is it that Kat and Dippy don't come under one roof? Hmmm...