Esmée Denters scored the ultimate costar for her new video "Love Dealer": Justin Timberlake.

Timberlake is featured on the uptempo R&B song, which he co-produced with Stargate and co-wrote with Denters, 21. The video, directed by The Malloys, was shot in March in downtown L.A. and shows "the process of recording her song," says a source. "Justin sends Esmée out into the world and watches her career take off as he looks down on her from a rooftop."

Dutch-born Denters – who was discovered after posting cover versions of popular songs on YouTube in 2006 – was the first artist signed to Timberlake's label, Tennman Records. "Love Dealer" hits radio in May and will appear on her album Outta Here, which debuts in August.