Parrotheads and wannabe parrotheads can enjoy live entertainment, games and giveaways before the big concert on Saturday, Oct. 23. Jimmy Buffett fans won’t want to miss the official Margaritaville Las Vegas pre-concert street party. There will be bratwursts, corn dogs and, of course, cheeseburgers in paradise. Admission is free, and the event will be held in the alley between O’Sheas and Margaritaville.