In our hearts, Dakota Fanning is still that precocious youngster in a tutu, prancing around with Brittany Murphy in 'Uptown Girls.' But we guess it's time to admit our little girl is all grown up. The actress turns sixteen today, with a classy dinner party to show for it. Fanning celebrated the big event at Villa Blanca in Beverly Hills, but lest you think she's too sophisticated for her own good, PEOPLE reports that the guest list included Fanning's cheerleading squad.