Well, this video is . . . sugary.
The latest single "Rock U" (lyrics here) from the group "Kara," who added a 14-year-old sometime in the past year. She's the one rocking the shit out of the Blossom hat. It's a break from the gangsta stylings in their earlier video for "Break It." There's a higher quality video of "Rock U" available if you click through to YouTube, in case you were curious about that.
I can't find the exact wording now, but I remember somebody commented in our Orientation handbook a couple years ago that everything in Korea tries to be cute, in the same way everything in the States is "Xtreme" and too cool for school. Korea uses a cartoon to advertise where the US would have a gravelly stoner voiceover, and Korean videos often feature cuteness exaggerated to a sickening degree where American videos would lots of brooding and feigned indifference.