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Prince Michael Jackson, Anna Paquin

Jeff Kravitz/FilmMagic

Prince Michael Jackson is all grown up!

Michael Jackson's 17-year-old son was rocking a goatee Tuesday at True Blood's season-seven premiere party, held at the Hollywood Roosevelt Hotel. Prince was mature in his actions too, and even palled around with the stars, including Anna Paquin and Joe Manganiello!

Prince, who made his acting debut last year on an episode of 90210, looked perfectly at ease with the HBO actors. He was all smiles alongside 31-year-old Anna, who placed a warm arm on his shoulder, and even threw up hand gestures with 37-year-old Joe. In case there was any doubt from the photos, Prince tweeted the show, letting them know that "last nights premiere party was great."

Prince Michael Jackson, Joe Manganiello

Jeff Kravitz/FilmMagic

Clearly, Prince fits right in with the Hollywood crowd! He hopes to have a successful career in the industry, to, telling Entertainment Tonight, "I'm looking to become well-rounded as a producer, director, screenwriter and actor."

That's not to say, though, he's not enjoying life as a (relatively) normal teenager, too. He regularly tweets about his home life with siblings Paris Jackson, 17, and Blanket Jackson, 12, and a variety of pets. And in his spare time, he volunteers with Children's Hospital L.A.

Prince's teenage years are playing out much more publicly than most kids', but he seems to have a good handle on things!