He gets up close and personal with the mysterious female in his music video, writing on her chest, and leaning in close for a kiss throughout the clip! It turns out the mysterious lady is none other than rookie actress Hwang Seung Un, who is currently starring in 'Let's Eat 2'. She and Hyunseung give us a peek at some of the intense scenes to come with this sexy teaser, which also gives us a taste of his new title track.

"You're the First" is a hip-hop dance number composed and written by Black Eyed Pilsung with a rap featuring by famous rapper Giriboy.

You can check out the full song and MV release when Hyunseung's mini album 'My' drops on May 8! He'll also be holding his comeback stage on 'M! Countdown' on May 7.