Jimmy Buffett was performing at the Grand Opening of his Margaritaville Resort & Casino July 3 in Bossier, when the crowd was treated to a performance of "Margaritaville" with the Robertsons from "Duck Dynasty" joining in on stage... and having a blast!

Here is some fanshot video of the performance, notice Willie in full Margaritaville spirit going barefoot...

More From Kicker 102.5