Park posted a picture of her riding a bicycle in a music video shoot for the song “My Dear.”
“I was shy but I sang the song word by word with a guitar on one fine day. Enjoy the rest of the night with the song. Good night,” she said on Twitter.
The song was written by Park and composed by her brother. B2ST member Yong Jun-hyung also featured in the song.
The music video was released Wednesday.