Video: David Cook Singing the National Anthem at the NBA Finals

Like former American Idol winners Kelly Clarkson, Ruben Studdard, Fantasia, Carrie Underwood, Taylor Hicks and Jordin Sparks before him, David Cook sang the national anthem at the NBA Finals game last night -- and sounded great!

The guy's gotta be exhausted -- he's been performing non-stop since he won the show, and the American Idol tour is just gearing up, but he still managed to give the Anthem his patented rocker spin.

Watch the video below and enjoy!