K-Doe Live at Jazz Fest, 1980-something
This is actually "the Ernie K-Doe Official Louisiana Music Hall Of Fame Induction video", but the bulk of it consists of K-Doe performing a couple of songs (including "Mother-in-Law") at Jazz Fest, sometime during the 1980s. The sign in the background ("Schlitz Welcomes You to the New Orleans Jazz & Heritage Festival") may be quaint, but the performance hot.
According to the Louisiana Music Hall of Fame, the video was "first presented at his Mother-in-Law Lounge in NOLA. 8-2-2009.... The closing footage is from Ernie and Antoinette's appearance in the movie 'Happy, Now & Then'."