Taco King Taco Fest is the premier Taco Festival in the St. Louis area. Happening twice a year, STL Taco Fest is THE place to discover and enjoy the best tacos in town while also experiencing some of the best entertainment this town has to offer. There’s fun for the whole family! Live music throughout day, contests, local craft and food vendors, and for those looking for the ultimate experience, we have a VIP option including exclusive tastings, cocktails, swag and more.