Chuck Norris

Chuck Norris in "Walker, Texas Ranger" in 1998.

CBS Photo Archive/Getty Images

Did you know that Chuck Norris actually died 20 years ago? Death just hasn't mustered up the courage to tell him yet.

We're kidding, of course! Today is Norris' 75th birthday and we hope his golden birthday is a very happy one. Carrie Underwood is psyched:

To mark the occasion, we're calling out his most memorable music moment -- singing the Walker, Texas Ranger theme song.

Isn't a shame that the stars don't sing their own theme songs like they used to? Maybe? It just wouldn't be the same if that wasn't Norris himself singing "Eyes Of a Ranger," whose lyrics first make rangers sound like Santa Claus and then, like an omnipresent voyeur: "When you're in Texas look behind you, because that's where the ranger's gonna be."