I think the most scandalous thing I ever saw Sunmi wear during her stint with the Wonder Girls was in "So Hot" where she wore a skirt. I mean let's be serious, when it came to innocence and purity, Sunmi was the queen.

But now those days are gone and now that she's gone solo, Sunmi amped it and the days where she was innocent are all over.

When 2NE1 first debuted, CL always looked like she had a bad haircut. She wore makeup that did nothing for her face and outfits that never made her look quite as feminine as we wished it had.

Now look at her. She is the epitome of hot.

I personally think that the biggest transformation in SNSD has to go to Tiffany. When she first debuted, she was this short hair bob wearing girl who could only pull off cute.

Nowadays, she's sexy, cute, hot, and womanly.

When Yoon Eun Hye debuted with Baby V.O.X she looked like a 90's K-pop star gone wrong.

Nowadays, she's an A-list actress with elegance, grace, and poise.

When Miryo of BEG first debuted, she looked like a cute rapper.

Over the years she's turned into a rapping sex pistol.