Ha Sung Woon is the voice behind "Bickering" for the 'Our Beloved Summer' OST.

In the music video, Choi Woong (played by Choi Woo Sik) and Kook Yeon Soo (Kim Dami) experience the back and forth of romance in high school. "Bickering" is an acoustic track with cute lyrics as well as the rhythmical melody of Ha Sung Woon's voice to represent the relationship between the two main characters.

Listen to Ha Sung Woon's "Bickering" above, and let us know what you think in the comments below.