I'm officially a fanboy of these two.

Information on them is very scarce. They are very new. From what I can piece together, they might be ulzzangs with musical talent, and they are credited with penning the lyrics for the track. Overall, not a bad combo. According to some random website that actually covered the release, the duo are going to release a new single each month until the summer when they will debut more with a mini-album. No idea if they are performing on music shows or what, but I do hope they get more coverage. 

Sina | Keezy