Hollywood Hits Up Perez Hilton’s Blue Ball Birthday Party! (PHOTOS)

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Infamous blogger Perez Hilton celebrated his 33rd birthday on Saturday night in only a way he could pull off — throwing a blue ball!

Held at Siren Studios in the heart of Hollywood, everything (and everyone) was seeing blue. From blue lighting, to cocktails and even clothing, there was a slew of celebs who had the blues.

There were also a number of performances including Greyson Chance and a late-night Darren Criss acoustic sesh. So, who else was in attendance?

Celebs like Raven Symone, Nickelodeon stars Avan Jogia and Victoria Justice, as well as television personality Ross Matthews were all seen, and at one point there was even a dance-off between Dancing with the Stars professional Louis Van Amstel and Real Housewives of Beverly Hills Taylor Armstrong. Do we smell a contender for next season?

Modern Family’s Jesse Tyler Ferguson was also spotted looking cozy with his boyfriend Justin Mitka as they watched performaces by Debbie Gibson and Macy Gray.

While there were rumors of a Selena Gomez appearance, Justin Bieber’s right hand man Jon M. Chu (who was hanging with Glee’s Harry Shum Jr.) remained coy about the possible appearance when we chatted with him last night.

Last night also marked the debut of Perez’s latest undertaking — an adorable boy band! While there name currently can’t be disclosed, they were definitely a talented bunch who sang and danced their hearts out. (Keep an eye out for the adorable mini-Bruno Mars).

The highlight of the night was easily Glee crooner Darren Criss’ 1 am acoustic set, where he sang “Part of Your World,” and yes, even “Teenage Dream.”

There had also been rumors circulating that Lady Gaga would make a special apperance and close the night with a performance,but the night ended with an encore of burlesque dancer Dita von Teese. Also, in lieu of gifts, attendees were encouraged to donate to GLSEN, the Gay, Lesbian and Straight Education Network.

Check out the rest of the photos from Perez’s Blue Ball in the gallery!