Seven O'Clock is behind "Heaven" for the 'Best Chicken' OST. 

"Heaven" is part 4 of the 'Best Chicken' OST, and it's about finding a small piece of heaven in another person. The music video features scenes starring Park Choi Go (Park Sun Ho), Seo Bo Ah (Kim So Hye), Andrew Kang (Joo Woo Jae), and their intersecting lives.

Watch Seven O'Clock's "Heaven" MV above! Have you been keeping up with 'Best Chicken'?