Clean chicken and remove anything in the cavity. Pat dry.
In a small bowl, mix together everything except chicken and lemon. Rub the butter mixture over entire chicken.
Cut the lemon in half, and slightly squeeze the juice from one half over top of chicken. Put both lemon halves inside chicken cavity.
Place chicken on a roasting rack in a roaster and roast for about 1 hour, basting 2-3 times. Cover with foil and roast an additional 30-45 minutes, basting 1-2 times, until internal temperatures reach 165°. Let chicken sit for about 5 minutes before carving.