Let's step away for a moment from all of the hair and makeup looks from last night's 2010 Grammy Awards and focus in on nails. Lately, it seems like the trend in nail polish during this award season has skewed on the nude side, like at the SAG Awards, where a naked nail trend emerged. As for the Grammys last night? Leave it to these fashionable songstresses to bring us colorful, unique looks in the nail polish arena. Can you guess who wore what polish?