[Christian Siriano. Photos by ERIKA SKOGG for Patrick McMullan]

Christian Siriano's friends threw him a surprise birthday bash Tuesday night at new spot on the block, Citrine. Our favorite Project Runway winner, whose stunning Spring '09 collection showed us all that gray really does matter, partied his 23rd b-day away with cupcakes, sparklers, "Tranny Mess" cocktails and his "fierce" friends including Levin Rambin, Scott Buccheit, Leigh Lezark, Kim Stolz, Andrew Andrew, Sophia Lamar, Andy Cohen, Vicki Gunvalson, NeNe Leakes, and Christian's love bug Brad Walsh.

[Christian Siriano Spring '09 Proves That Being On Project Runway IS Valuable]

More photos from this event below...

Kristy Stroh, Christina Clark, Nicole Kent, Heidi Chi

Levin Rambin, Scott Buccheit, Amber Petree, Jason Shifrin, BJ Green, Albert Gomez, Nora Sheetlan

Kristean Paerels, Brad Walsh, Christian Siriano

Christian Siriano, Sam Bennett

Alana Jones-Mann, DJ Dimitry

Jamie Dominguiz, Tinypants, Yeanette Converse

Richard Hagerty, Fred Attenborough,Sophia Lamar

Christian Siriano, Brad Walsh

Carolina Ramirez, Jason Haff, Jessie Askinazi, Christian Siriano