Somebody's turning over a new leaf in Bollywood. The former six-pack Khan, aka Shah Rukh Khan, has some fitness advice for YOU: Shut Up And Train!

Shah Rukh Khan, not particularly known for being a fitness buff (barring those few months when he was talking about and promoting his six-pack look from Om Shanti Om), unlike his arch nemesis Salman Khan, made an impromptu appearance at fitness trainer Deanne Pandey's book launch, Shut Up and Train!

The handsome superstar made an entry, and was instantly greeted to cheers and excitement from the crowd.

In a crisp white tee, black sleeveless waistcoat and black denims, Shah Rukh's stubble made head turns. His dimples were on full display, as he smiled and joked with Deanne, and spoke at length about her new book.

The event drew many A-listers out on a fine Sunday afternoon in Mumbai.

Apart from Shah Rukh Khan, Salman Khan's family was also in attendance. Salman's brother Sohail Khan, his sister Alvira Agnihotri, good friend Baba Siddiqui  Show less