[1] "Kiss" was written and composed by YG Entertainment's exclusive Korean music producer Teddy Park, who is known as a member of 1TYM and for his work with Big Bang from 2006 up until early 2009.

In 2009, Oriental Brewery announced that it had chosen Sandara Park and actor Lee Minho to be their newest models for their beverage brand Cass 2x,[2] and the song was used as a result.

"Kiss" was used as the background music for a Cass Beer commercial film that she herself starred in alongside actor Lee Minho.

It features Sandara and Boys Over Flowers star Lee Min-ho in leading roles playing love interests.

The scene shifts to the night of a concert, where Lee is seen leaning against his car, unable to forget Dara or the way she acted towards him at the club.

Dara asks one of his friend's for the money he would have won if she fell for him and rips it in front of Lee, indicating she knew about the bet.

The video ends with her leaving a distraught Lee, touching the can ring on her neck (now on a necklace), implying that she had fallen for him and that he had in fact, won the bet.