GFriend singer Yuju will soon debut a music video with fellow South Korean star Jihoo.
The "Heart Signal" teaser shows a young girl and boy broach their feelings for each other on a playground. The video ends with a snippet from the song.
Osen reported last week that Yuju and Jihoo will release "Heart Signal" on Oct. 27. News of the project first broke in August, with Yuju considering several male vocalists before choosing Jihoo.
Yuju last released the solo single "Cherish" featuring Sunyoul in 2016, and the EP Parallel with GFriend in August. Jihoo and IZ released their debut EP, All You Want, the same month.