MU Frat 1

That's right: it turns out that not only are Mike and Sully - the two heroes of Pixar's upcoming Monsters University - the best of friends, they also happen to be brothers. What you see above is the "family portrait" of the Oozma Kappa fraternity at Monsters University, a collection of young monsters trying to earn their degree and become professional scarers. But OK isn't the only Greek house on campus.

Yahoo! has launched a new gallery that shows off all of the fraternities and sororities of the upcoming animated prequel, and in turn also delivers some images of characters both old (namely Randall Boggs - the monster voiced by Steve Buscemi) and new. Check out a few of them below - along with their official descriptions - and head over to the source to see even more.

MU Frat 2
The Roar Omega Roar (RΩR) fraternity is made up of the best of the best. They’re the smartest, most skilled, Scariest monsters at Monsters University, and come from families with a long, proud history of Scaring. While the RΩRs may be preppy in dress, they are ferocious in action and downright ruthless, if necessary. Self-declared as the most elite house on campus, the RΩRs are lead by Johnny Worthington who presides over the house like an all-powerful monarch. Eager to continue their Scare Games winning streak, the RΩRs will do whatever it takes to stay on top.

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The Eta Hiss Hiss (HSS) sorority has been around since the beginning of Monsters University and the members are as mysterious as they are terrifying. The HSS sisters might be pale, mysterious and sullen, but these intimidating Goth girls are fierce competitors and tough as nails. Fittingly, their most distinguished alumna is one of the most powerful, Scary monsters on campus who every new Scare student strives to impress—Dean Hardscrabble.

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Pretty in pink, the sisters of Python Nu Kappa (PNK) are not to be underestimated. Led by their fearless queen bee Carrie, these ladies are smart, cold-hearted and merciless. Covered in pink from head to toe, the PNKs sweet exterior quickly turns terrifying when the Scare Games begin.

Directed by Dan Scanlon, Monsters University is a prequel to 2001's Monsters Inc. and tells the story of how Mike Wazowski (Billy Crystal) and James 'Sully' Sullivan (John Goodman) first met in college. The twist, however, is that just because they ended up being the best of friends doesn't mean that it actually started that way. The film includes an impressive line-up of new voice actors to the Pixar family, including Helen Mirren, Dave Foley, Sean Hayes, Joel Murry and Julia Sweeney. Look for the film when it hits theaters on June 21st, and for a refresher course be sure to watch the theatrical trailer again below.

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