01 - Preheat a grill or grill pan to medium-high heat, approximately 400°F.
02 - Pat chicken breasts dry. In a small bowl, combine olive oil, smoked paprika, garlic powder, onion powder, salt, and black pepper. Evenly coat both sides of chicken with the seasoning mixture.
03 - Brush husked corn with melted butter and season with salt and black pepper.
04 - Place chicken on the grill. Cook 6–7 minutes per side, basting with barbecue sauce during the final 3–4 minutes on each side. Cook until chicken is cooked through and internal temperature reaches 165°F.
05 - At the same time, grill corn, turning occasionally, until browned and tender, about 10–12 minutes.
06 - Remove chicken and corn from grill. Allow chicken to rest for 5 minutes before slicing.
07 - Arrange grilled chicken and corn on plates. Garnish with chopped parsley and lime wedges if desired.