With so many girl groups in Korea these days, many fans are caught up in the seemingly endless stream of debuts, comebacks, and new releases.

But what about the first time you fell in love with the sounds of Girls' Generation, KARA, 2NE1, and others?

Here is a mix of the greatest hits from K-Pop's hottest girl groups. Give them a spin and remember when...

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Girls' Generation - "Gee" (2009) Gee

2NE1 - "I Don't Care" (2009) 2NE1

KARA - "Mister" (2009) Revolution

SECRET - "Magic" (2010) Secret Time

Wonder Girls - "Nobody" (2008) The Wonder Years

T-ara - "Bo Peep Bo Peep" (2009) Jewelry Box

Brown Eyed Girls - "Abracadabra" (2009) Sound-G

4Minute - "Hot Issue" (2009) For Muzik

miss A - "Bad Girl Good Girl" (2010) Bad But Good

After School - "Diva" (2009) Because of You

f(x) - "Nu ABO" (2010) Nu ABO

SISTAR - "Push Push" (2010) So Cool

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Which songs are your favorites?