These are listed in order of episode name, performer and song although the title of the song may not be it's proper name.
Grannie Annie....Oak Ridge Boys...Old Time Lovin'
State of the County...Oak Ridge Boys....Leaving Louisiana in the Broad Daylight
Find Loretta Lynn...Loretta Lynn...Ya'All Come!
The Hazzardville Horror....Tammy Wynette....Rocky Top
Good Neighbors Duke....Hoyt Axton....Cop in a Little Bittly Town
By-Line Daisy Duke...Dottie West....Even if you were Jesse James
Bye Bye Boss...Freddie Fender.....On the Bayou
The Great Hazzard Hijack....Roy Orbison...Pretty Woman
Double Dukes....Donna Fargo...Lone Star Cowboy
The Fugitive...Johnny Paycheck...Take This Job and Shove It
Hughie Hogg Strikes Again...Buck Owens...Tiger by the Tail
The Sound of Music Hazzard Style....Mickey Gilley....Object of my Affection
The Sound of Music Hazzard Style....Mickey Gilley....The Girls all get Prettier at Closing Time
Welcome Waylon Jennings....Waylon Jennings...She Don't Toe the Mark
The Hazzardgate Tape....Mel Tillis....Stay a Little Longer
Mel Tillis also appeared in The Rustlers but didn't sing in that one. Country music star Janie Fricke was in Happy Birthday General Lee but didn't sing. Stella Parton was in Deputy Dukes but didn't sing. She is Dolly Parton's sister and was also a country music singer at the time.