Tab Benoit is an American blues guitarist, musician, and singer. He combines a number of blues styles, primarily Delta Blues. He has been inducted into The Louisiana Hall of Fame. 

The Crawdad song, American traditional -2 great versions:  The Foggy Mountain Boys & The Pedersens.

"Crawfish" is a bluesy jazz duet recorded by Elvis and jazz singer Kitty White. It is the opening song for Presley's 1958 film  "King Creole".

"Jambalaya (On the Bayou)" is a legendary country and western song originally written and recorded by Hank Williams but covered subsequently by many ! 

"Big Yabbies From The Creek" by legendary Australian country music artist Slim Dusty. Released in 1981, this classic bush ballad tells the story of catching large freshwater crayfish in the Australian outback.

Hey Little crayfish (crawfish) from 1966 by Don Michel & The Misfits country rockers from Louisiana.

Not about crawfish but lots of crawfish in it!