Lee Seung Gi's appearance on 'Running Man' gave the show a large boost in ratings.

'Running Man' brought in a viewer's rating of 20.7%, which brought in an overall total of 16.6% for SBS's�'Good�Sunday' when combined with the 14% of 'K-Pop Star 2'.�The ratings were far ahead of the 16.7% of '1 Night 2 Days' and a combined total of 12.9% for KBS 2TV's 'Happy Sunday'.

KBS 2TV's prized segment '1 Night 2 Days' has been on the rise since its change in the line up, and the show has frequently battled with 'Running Man' for the top place in ratings. �However, Lee Seung Gi's appearance on the show pushed 'Running Man' into the first spot by a commanding margin.

Lee Seung Gi has always boasted of large ratings, from his original '1 Night 2 Days' spot to 'Strong Heart'.