See here and here for more details about the Korean song by 장나라 called Sweet Dream. I've been looking for it for ages! Like 3-4 years. I'm not joking about this either. I'm so happy that I found it. Go to You Tube and put in "Jang Nara Sweet Dream" and there you go!
Did I mention that I'm sooooooooooooooooo freaking happy right now? =P