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Look who's growing up!

Michael Jackson's oldest son Prince Michael Jackson was spotted recently at the "True Blood" final season premiere sporting a goatee while paling around with stars Anna Paquin and Joe Manganiello.

Prince Jackson Details Life with Michael Jackson

Now 17, Jackson appeared at ease with the HBO stars, later tweeting, " @TrueBloodHBO #TrueToTheEnd last nights premier party was great"

The eldest of the pop star's three children, Jackson told " Entertainment Tonight" last year that he's "looking to become well-rounded as a producer, director, screenwriter and actor." In addition to working as a special correspondent for the entertainment show, Jackson made his acting debut last year on an episode of "90210."

Prince Michael Jackson to Make Acting Debut

Still, he's maintaining the life of a teenager, albeit a famous one.

Jackson frequently tweets about his life at home: hanging with siblings Paris Jackson, 17, and Blanket Jackson, 12, taking care of his pet reptiles, working out and volunteering at Children's Hospital Los Angeles.