Arbaaz Khan ringed in his 50th birthday last night in the company of ex-wife Malaika Arora and her sister Amrita Arora Ladak. The celebration was hosted at Malaika’s mother Joyce’s house in Bandra. Arbaaz and Joyce are said to share a very warm and cordial relation and are fond of each other. Malaika even wished her ex-husband on Instagram, sharing several moments from his birthday. While Malaika and Arbaaz were officially divorced in May this year, they are often spotted partying together. The couple has a son Arhaan, whom they accompanied together to the Justin Bieber concert held earlier this year.