We were all going under the sea in 2009 in various shades of aqua, turquoise, and blue nail polish. It's a fun trend that was everywhere for the last few months and shows no sign of fading, so it's not surprising that voters gave it the top ranking in our poll. It's a no-brainer for us, too. Plus, cool blue nails were all over the 2010 Spring runways, so we're pretty sure this colorful wave hasn't crested yet.
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