Prepare your crockpot by spraying it with cooking spray.
Place the chicken breasts at the bottom of the crockpot.
Mix together the barbecue sauce, chicken broth, Worcestershire sauce, garlic powder, onion powder, smoked paprika, salt, and pepper.
Pour the sauce mixture over the chicken.
Add sliced onions and bell peppers on top, if using.
Cover the crockpot and set to low for 6-8 hours or high for 3-4 hours.
Shred the chicken in the crockpot about 30 minutes before serving.
Stir the shredded chicken into the sauce.
Serve hot, garnished with fresh herbs if desired.
Enjoy your flavorful BBQ chicken!