The teaser of the Hrithik Roshan Katrina Kaif starrer Bang Bang is out and it looks quite promising. While Hrithik Roshan looks super-ripped Katrina too seems to be in superb shape and seems to have maintained her Dhoom 3 physique. But then Katrina really takes her fitness seriously. She's been voted Asia's sexiest woman four times in a row and looked absolutely electric in Dhoom 3. To get in shape for the movie she learned MMA parkour and other fighting techniques. She also followed a strict diet for the movie. Here's a sneak peek into the Ek Tha Tiger actress'