Fans of Lee Seung Gi will be happy to hear what he has in store if his drama, 'Book of the House of Gu', is a success!

Appearing on MBC's 'Entertainment Relay', the artist and actor promised to do something amazing if the ratings for his newest drama surpassed a whopping 30%. "If the ratings go above 30%, I'll sing an OST song dressed up in my Choi Kang Chi costume," he said. Choi Kang Chi is the name of his character in the drama.

Also, if ratings went above 25%, he told the interviewer that he would like to appear on the show ten more times. I think we're all rooting for that to happen!