A lot can change in a few short years. Just ask Blake Shelton.

In the years since Shelton first burst onto the country music scene, he's gone from a hot new artist to one of country music's most reliable hitmakers, with a long string of hit singles. He's gone from being a mid-level touring act to selling out enormous venues, and he's gone from saying he hates reality TV to a high-visibility gig as a judge on The Voice.

But nothing about Shelton has changed as obviously as his hair style. When he got into the business in 2001, the singer sported one of the most impressive mullets in Nashville. But in more recent years he has opted for a sleeker, more contemporary hairstyle to go along with his more mainstream image and career opportunities.

To mullet or not to mullet -- that is the question. Which of Shelton's hairstyles do you prefer? Take our poll below; you can vote as often as once an hour.

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