This three-year-old tests the strength of her car seat's restraining devices as she rocks out to 'Good Girl' by Carrie Underwood. While the video starts off pretty strong, the cutie really lets loose at about the 30-second mark, flailing her arms and whipping her head from side to side like she's in the pit at a heavy metal concert. So much attitude at such a young age! Take note pre-school boys, this one is a firecracker of the most adorable kind.