For every show on Metallica's World Wired tour, they post artwork with that city's flag infused into a vampiric looking skull. Luckily Sioux Falls officially adopted a flag recently, although it has been around for a few years.

Other artwork for the Sioux Falls show was posted as well.

I also just can't wait to see the show tonight! My first time seeing my favorite band since May 14, 1992.