Celebrated filmmaker Karan Johar turned 50 today. Making the occasion memorable and grand, he hosted a party at Mumbai's Yash Raj Studios. It was a star-studded affair with the who's who of Bollywood in attendance.

Aamir Khan attended the party with his former wife Kiran Rao.

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While Aamir wore simple jeans and a T-shirt, Kiran looked stylish in a silver dress.

The former couple posed for the cameras on the red carpet.

Preity Zinta, currently in Mumbai, attended Karan's birthday with her husband Gene Goodenough.

The actress wore a lovely green outfit.

She looked stunning as ever. The couple, who makes rare appearances, posed for the cameras.

(Source: Viral Bhayani)