This one is SO EASY!!

Genie

The first time I heard this song was on DH (Dream High) when IU first started with the guitar and then everyone else came ^^ I haven't seen the actual drama, but after I heard them sing this song I fell in love with it ^3^ There aren't many songs I fall in love with after listening to it just once.. So GENIE FTW! xD

Here's IU singing the song (this is the version I heard first):

I always get so emotional in the beginning, even though I don't know whats going on and why they're singing it. But when IU sings in the beginning, it's so passionate. And when everybody else comes. I guess the song is emotional too in this version. Maybe because of the guitar ^^ Hahaha and when that guy starts crying, SO ADORABLE! xD