Add the barbecue sauce, Worcestershire sauce, apple cider vinegar, brown sugar, minced garlic, onion powder, smoked paprika, salt, and pepper to the crockpot. Whisk the ingredients together until well combined.
Add the chicken to the crockpot and spoon the sauce on top of the chicken until completely covered.
Cover with the lid and cook on low for about 3.5-4.5 hours.* When done, the meat should be very tender and easy to shred.
Shred the chicken and mix it back in the crockpot with the sauce. Serve on toasted buns, or however you prefer. Enjoy!
Notes
*This isn't a typo--the chicken should really only take 3.5-4.5 hours on low, depending on the thickness of the meat. Check on it right at 3.5 hours to see if it's done!