The 2010 American Music Awards take place on Sunday, November 21, at the Nokia Theatre L.A. Live in Los Angeles. Taylor Swift walks the red carpet.

One award was given to the 20-year-old country cutie that night, and she won it! The award for Favorite Female Artist (Country) went to Taylor.

She told her friends she was grateful for them and said she had another reason to be thankful this Thanksgiving.

Taylor Swift shows off a new straight-haired look at the 2010 American Music Awards!

Taylor Swift shows off a new straight-haired look at the 2010 American Music Awards!

When Taylor Swift performed at the American Music Awards on Sunday night, she showed off a sleek new look.

The young pop/country star was seen sitting behind a piano without her trademark curls. Instead, she had bangs and pulled her straight hair back into a ponytail.

Taylor Swift shows off a new straight-haired look at the 2010 American Music Awards!

Taylor Swift shows off a new straight-haired look at the 2010 American Music Awards!

Taylor Swift shows off a new straight-haired look at the 2010 American Music Awards!

After singing her hit song “Back to December,” which is thought to be an explanation to ex-boyfriend Taylor Lautner, Swift, who won the American Music Award for Best Country Female Artist, switched to OneRepublic’s “Apologize.”

Taylor Swift shows off a new straight-haired look at the 2010 American Music Awards!

Taylor Swift shows off a new straight-haired look at the 2010 American Music Awards!