Song Ji Hyo revealed how she first became interested in acting on the latest episode of 'Running Man'.

While moving in the car between the opening mini-games, the actress confessed that the actor Park Shin Yang - who was one of the guests for this episode - had inspired her to pursue a career in acting.

"I told him that I began wanting to act after I watched his performance in 'Promise'," she revealed, detailing a conversation that had occurred earlier between the two actors.

The hit film 'Promise' was released in theaters in 1998 and immediately became a smash success.