Prepare 3–4 lbs pork shoulder or pork butt by patting the meat dry and removing any excess fat.
In a small bowl, mix together ½ cup brown sugar, 1 tablespoon garlic powder, 1 tablespoon onion powder, 1 teaspoon smoked paprika, 1 teaspoon salt, and ½ teaspoon black pepper. Rub the mixture all over the pork.
Place the pork into your crock pot and pour 12 oz regular Coca-Cola and 1 tablespoon Worcestershire sauce around the pork.
Place lid and cook on low for 8-10 hours (or high for 4–5 hours) until the pork is tender and shreds easily with a fork.
Transfer the pork to a cutting board and shred meat with two forks. Return the meat to the crock pot and mix in 1 cup barbecue sauce (I like to use Sweet Baby Ray).
OPTIONAL (for crispier pork): Preheat your oven to 425°F. Spread the shredded pork on a rimmed baking sheet with some of the juices and bake 10–15 minutes, stirring once halfway through, until the edges are slightly crispy and caramelized. After crisping, mix in 1 cup barbecue sauce, if desired.
Serve on hamburger buns or slider rolls, and enjoy!