Matthew Morrison continued his bid for Hollywood Halloween domination, returning a second year to host his own party in a landscape crowded with competition from the likes of Heidi Klum and Kate Hudson.
The "Glee" teacher donned a bunny suit, complete with whiskers and white face paint, for the Saturday fete held once again at West Hollywood's Voyeur.
So who showed? Cast mates Chris Colfer (as, um, a sea monkey), Darren Criss as regal elephant Babar and Naya Rivera as an adult-sized baby, as well as Amber Riley, Kevin McHale, Dianna Agron and Mark Salling.
A ghoulish house band lit up the Bing stage, where Morrison's girlfriend, Renee Puente, took the opportunity to celebrate a different holiday: the host's birthday Sunday. She sang "Happy Birthday" in the style of Marilyn Monroe.
Other attendees included some interesting Hollywood dating dynamics: Lauren Conrad partied in the presence of ex Kyle Howard, as did now-married David Annable (with wife Odette) among his "Brothers & Sisters" costar and his ex Emily VanCamp.