She may be the most popular SNSD member, but is she the most stylish? Let's take a look at some of Yoona's best and worst outfits!

This lime green pleated dress looks immaculate on Yoona. Everything about it and the color give her this kind of pop that just makes her glow.

There's nothing special about this outfit, but something about it is very Yoona-esque. It's age appropriate and classy in a very teenage way.

I'll tell you what works about this outfit and what doesn't. Those shoes and burgundy bag are spectacular. But the outfit looks like she went through Forever 21's clearance rack and came out with this.

Loving this trench, those pants, the bag, and those boots!

If this pleather skirt was in a different, lighter color, I would say this outfit is the definition of Yoona's style. She should always be in very classy, Club Monaco wear.

Putting pale Yoona in a white sweater is possibly the worst stylistic choice you could make for her. While pale skinned women always look good in pastel colors, white pushes the paleness to the edge.

Plain tee, shorts, and a hat? Alright, we'll let it slide but that Balenciaga bag is to die for.

Oh my goodness this short red pea coat is doing wonders for her! Look at how much a color can bring someone to life!

Where can I get this blazer? She looks hot, sophisticated, and sexy in this casual yet attractive number!