Girl group Stellar has made their comeback after being gone for more than a year with the release of their “Study” music video through the official CJ E&M YouTube channel.

“Study” is the title song of their latest digital album. The song is a bouncy retro pop song about how a girl opens up her heart to a man. The song was produced by Sweet Tune,who also composed Infinite‘s “Be Mine” and “Chaser,” as well as Kara‘s “Jumping” and “Lupin.”

The choreography is produced by Yama & HotChicks, who worked with Kara on “Mister,” famous for the butt dance, and Girl’s Day‘s “Expectations” with its suspenders dance.