In this batch of Carrie Underwood pictures, viewers can see some of the country songstress's best hairstyles. Underwood is constantly changing the way she wears her hair, and the hairstyle she chooses seems to be dependent upon which outfit she is wearing or what event she is attending.

For example, when Underwood attended the 2010 American Country Awards, she wore an elaborate one-shouldered red gown. Therefore, the singer wore her hair in a messy updo so as not to draw attention away from the dress's detail.

However, when Carrie is performing at summer music festivals, she likes to keep her hair simple yet fun. For example, when she performed at the 2010 CMA Music Fest last summer, Underwood wore cowboy boots, a tank and her hair in a half-up, half-down braided look.

Flip through these Carrie Underwood pictures and let us know which hairstyle you think looks best on the singer.