Katrina Kaif and Aamir Khan in Dhoom 3 (2013)

It's official. Speculation over Katrina Kaif's casting for Yash Raj Films' 'Thugs Of Hindostan' have finally been put to rest with lead actor Aamir Khan announcing the news on social media last evening. He wrote, "Finally, we have our last thug.... Katrina! Welcome aboard, Kat."