Lisa & Brian - 우린 친구가 될 수 없어 -- It's a cute song ^^.
Hwanhee & May Doni - 남남 (Strangers)
Hwanheeeee! I've missed his voice :)). I have no idea who May Doni is, but she's got a nice voice and sings very well too. Their voices complement each other's well!
Yesung & Luna - 너를 사랑하고 (And I Love You)
I totally squealed when I saw this duet; Yesung and Luna are both awesome singers :)). I don't think I need to say how much I love Yesung('s voice), but I actually really like Luna too; she's one of my favourites out of all the girl groups ^^. Her voice is lovely ♥♥♥. I especially love her parts in this song. And this is a great ballad! Even though coming from me, that's extremely not trustworthy, but it is really nice hehe :).
Time to buy another Mnet card XP.
