Actor Park Min Woo and SISTA's Soyou became lovers in the teaser of K.Will's music video "Day 1."

The two stars acted a couple who have recently started dating. The love story of SBS "Roommate" star Park Min Woo and the singer of the hit song "Some," Soyou, has been gaining attention.

K.Will's music videos have previously gained popularity for their casting of famous celebrities such as IU, Yeo Jin Gu, Ji Chang Wook, Seo In Gook, An Jae Hyun, INFINITE's L, SISTA's Dasom, and EXO's Chanyeol.

The music video of "Day 1" was produced by Bishop, who produced the Korean soundtrack for Disney's latest animated feature, 'Frozen.'

Meanwhile, "Day 1" is the title track in K.Will's fifth album ONE FINE DAY, and will be released on June 26.