We're pleased to announce that one of the favorite celebrities of The Hollywood Gossip staff celebrates a birthday today. Carrie Underwood is 25!

The Oklahoma native won the fourth season of American Idol and is one of the most commercially successful artists to be spawned by the Fox reality show, rivaled only by the likes of Chris Daughtry and Kelly Clarkson.

Aside from her country music hits, Underwood's appeal can be attributed to her wholesome image. More Julianne Hough than Britney Spears, Carrie meshes beauty and talent with a grounded, down-to-earth and effervescent personality.

The amazing Carrie Underwood hits the quarter-century mark.

As for her personal life, Carrie Underwood used to date Dallas Cowboys QB Tony Romo and has been linked to Gossip Girl star Chace Crawford.

She is a two-time winner of PETA's "World's Sexiest Vegetarian" contest, a People magazine "Most Beautiful People" list entrant in 2007, and the world's "Sexiest Female Musician" as determined by Victoria's Secret.

Happy birthday, Carrie! Check out our calendar of celebrity birthdays to see when your favorite star's is coming up - or if any celebs share your special day!

UPDATE: Also celebrating a birthday today? Soap opera star and upcoming Dancing with the Stars hunk Cristian de la Fuente! Woooo!