Karan Johar praised Shah Rukh Khan's chiselled physique after watching the song 'Tu Mil Jaaye' from 'King'. The filmmaker shared a picture of the superstar flaunting his six-pack abs on Instagram Stories, calling his muscular appearance 'INSANE'. Mumbai: Filmmaker Karan Johar was left impressed by Shah Rukh Khan's chiselled physique after watching the superstar in the song 'Tu Mil Jaaye' from his much-awaited action entertainer, 'King'.