Hairstyle File: Keri Hilson

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Keri Hilson is many things -- a knockout performer, a hot songwriter, a model-perfect stunner -- but to the hair-obsessed, she is a bonafide mane maven!

Since she stepped on the scene as a solo artist, we've never seen Hilson rock the same look twice. From a blonde-tipped, modified duck tail to her current chin-length, bold blonde bob, she's all about pushing the style envelope.

Here, we look back at the chart-topping trendsetter's fiercest 'dos of all time!