Vanessa Hudgens, Nicole Richie and Joel Madden, Carmen Electra, Lance Bass, Brody Jenner, Jessica Stroup, Brittany Snow and Queen Latifah are among the stars who join Efron in a wacky Funny or Die video that debuted Wednesday. “A lot of people did it because they want to hang out with Zac,” 17 Again producer Adam Shankmen, who co-directed the clip, tells PEOPLE. “It is the craziest group of people.”