I Believe-My Sassy Girl Theme

I Believe I Believe is used as the theme song for the film My Sassy Girl. The film was extremely successful in South Korea and was the highest grossing Korean comedy of all time. When My Sassy Girl was released throughout East Asia, it became a mega blockbuster hit in the entire region, from Japan, China,Taiwan, Hong Kong, as well as Southeast Asia, to the point where it was drawing comparisons to Titanic. And I Believe was performed by South Korean ballad singer Shin Seung-hun. The song has been translated to different Asian languages such as Japanese, Chinese and Filipino.