"NCIS: New Orleans" star Scott Bakula is indeed a musician in his own right, but nonetheless they farmed out the intro work to Colorado-based blues band Big Head Todd and the Monsters.

The song isn't theirs, though. It's the blues classic "Boom Boom" by the late, great John Lee Hooker. That's the regional connection -- Hooker was born in neighboring Mississippi, and is known for helping to update and popularize the Delta blues genre.

Bakula certainly could have done it, though. He has a musical theater background (he was nominated for a Tony Award for his role in the musical "Romance/Romance" in 1988), and he does play piano occasionally in the show. He said in an interview with "CBS This Morning" -- back when he had to work to promote the show, before it became yet another franchise smash hit -- that the fact that the show actually shoots in New Orleans is inspiring for him.

"As a musician, to be in the place where jazz was born, around that environment, is breathtaking to me, all the time."

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