Set up chairs facing outward in a circle so that there are enough for all but 1 player.
Have an adult start a CD player or MP3 player playing Zydeco music. Have players start walking around the chairs in a circle. After a few moments, stop the music.
When the music stops, players must find an empty seat. The last player left without a seat is 'out".
Remove 1 chair and repeat the process each time you eliminate a player. Once you are down to 2 players, the first to sit in the chair when the music stops is the winner! You can proclaim this player the Mardi Gras King or Queen for the rest of the party.