The who's who of Bollywood turned up at actor/producer Arbaaz Khan's 50th birthday bash at a Bandra nightclub. We spotted Arbaaz's ex-wife Malaika Arora, brothers Salman and Sohail, father Salim Khan, Karisma Kapoor, Sonakshi Sinha and many other friends from the film fraternity. While Salman Khan escorted father Salim Khan to the car, Arbaaz stepped out to meet and greet the paparazzi.