Carrie Underwood won big at the American Country Countdown Awards, which aired Sunday night on Fox.

Underwood, who was crowned American Idol's fourth-season champion back in 2005, walked away with Female Vocalist of the Year. She beat out fellow nominees Cam, Jana Kramer, Kelsea Ballerini and Miranda Lambert for the award.

"Thank you guys so much. I would like to thank the good Lord above for country music. We are all blessed to be a part of it. I would like to thank my entire, incredible team, band and crew, and all the people I'm lucky enough to work with on a daily basis. They are the best. Country radio, thank you so much for playing our stuff, for playing our music! And thank you for being behind me for so long," Underwood, who also performed at the awards show, said in her acceptance speech.

"Thank you to the fans! Fans, fans, fans, fans. Thank you guys so much! It's been so much fun seeing you guys out on the road this year, and we've just been having fun together! So thank you. And one fan in particular, Isley Thibodeaux, this is for you!"

Underwood, 33, dedicated her award to Thibodeaux, a 10-year-old girl who was killed on her way home from Underwood's concert in Louisiana on April 24 by a drunk driver.

Underwood changed into a total of four dresses throughout the night. When she accepted her award, she wore a gold futuristic ensemble complete with a flare dress and gold gladiator sandals. Her album Storyteller was nominated for Album of the Year, but she lost to Traveller by Chris Stapleton.

A country star with reality TV ties who was nominated for awards but walked away empty-handed this year was Blake Shelton. He's starred on The Voice since the show debuted back in 2011.