
That 2nd teaser was fucking hilarious and pretty cool. She's hot and the dancing was hot. The 1st one looked like something from 2002 j-pop and was not poppin. (And I realize from Masa's post the better one is the Korean version...)
I'm not sure how well the song is gonna be received. I don't think the song is good or catchy enough to be a hit unless there'll be major hype behind it. And it sounds more K-pop than American despite its non korean producers. But a Flo-rida remix is a good move from them. No better way to make it into the US market right now than to get some rapper with a recent hit (though most likely cause of T-pain) to make a remix with. But Flo-rida so far has been a one hit wonder and nobody really cares about him.
If they really wanted to break in, shoulda tried to get Lil wayne or T.I., as those would have been sure hits

But for all I know they coulda tried and got rejected.
And from looking at the producer's past works, they have worked with lots of big name artists but hasn't produced a hit in the US other than Britney Spear's Toxic and Piece of Me, who has her name to back her up.