In a black off-shoulder leather dress, Katrina Kaif looked stunning. The diva posted her gorgeous photos on social media. Katrina has been quite active in promoting her movie Phone Bhoot. Katrina put, "Kaali teri…. Song Launch Tonight #phonebhoot" as the caption. Ishan Khattar and Siddhant Chaturvedi are also featured in Phone Bhoot. The Movie trailer…