Her behavior may pale in comparison to that of her older sister Miley, but Noah Cyrus raised a few eyebrows in Toluca Lake on Thursday (October 24) when she drove a car underaged.

Though she's only 13, Noah got behind the wheel of a Fiat 500 with dad Billy Ray Cyrus in the passenger seat. In California, you have to be 15 and a half to get a learner's permit.

Meanwhile, her big sis is in New York City where she made a brief cameo on "Saturday Night Live" this week.

Instructing host Edward Norton to have fun, keep your energy up, and stick your tongue out, Miley then announced that she'll be starting a tour in 2014.