One of the best young singers on the planet celebrates a birthday on this 10th day of March. No, not Miley Cyrus. No, not Justin Bieber (that was last week).

We're talking about Carrie Underwood, American Idol winner turned American country sensation and universal cutie. She's 27 today. Happy birthday, Carrie!

On top of being a terrific talent with 10 million-plus record sales to her name, the product of Checotah, Oklahoma, is smart, sexy and even down to earth.

She and Olivia Wilde make quite the March 10 birthday combo ...

Birthday girl Carrie Underwood smiles. [Photo: PacificCoastNewsOnline.com]

Having recently made her TV debut (and contributed to our library of great How I Met Your Mother quotes), Carrie will soon appear in her first film, Soul Surfer.

We have no doubt she'll do great. In honor of her birthday, we put together a tribute of Carrie Underwood photos. Click to enlarge and send her your greetings!