PHOTOS: The Scariest and Sexiest Costumes of Halloweenie 2013

Halloweenie, an annual fundraiser for the Gay Men's Chorus of Los Angeles, attracts big names like Adam Lambert, Lance Bass, Amy Paffrath, Marissa Jaret Winokur, Rose McGowan, Neil Patrick Harris, and Drew Barrymore for this costume-required soiree. They don some of the scariest, sexiest, and most stimulating ensembles -- all for a great cause, as proceeds benefit GMCLA's antibullying program for schools, its youth chorus, and the It Gets Better Tour, which takes a message of acceptance around the nation.

Saturday at 9 p.m., join in the festivities and enjoy DJs, dancing, and eye candy at the appropriately eerie and elegant Los Angeles Theatre, a historic movie palace whose interior was modeled after the Hall of Mirrors of Versailles. Buy tickets here. And feast your eyes on some of the most creative costumes from last year's event.