So get this. Tonight on Adult Swim’s Childrens Hospital the Party Down catering service will reunite! Just because the insanely underrated, ill-fated Starz comedy Party Down was cancelled after a two-season run in 2010, that doesn’t mean the gang can’t get back together again. If you watch the irreverent comedy from Rob Corddry then you should know that the show stars two Party Down members–Ken Marino and Megan Mullally. In tonight’s episode Ron Donald and Lydia Dunfree will be joined by fellow caterers Lizzy Caplan, Martin Starr, and Ryan Hansen. Unfortunately, pending any surprises, Adam Scott and Jane Lynch will not be on hand for the scene. Dr. Glenn Richie (Marino) is celebrating his Bar Mizvah and the Party Down crew show up to cater it.

In an interview with EW, Marino shared his initial excitement on shooting day. “I couldn’t believe all the Party Down actors showed up!” he said. “I love the guy who plays Ron. He came in. He was kind of a d—, actually, in real life.” Funny man! He continued, “We had so much fun doing that little scene. And then we were like, goddammit, why is this show not happening anymore?” He went on to describe his hair dilemma. “We had to try to fake my Ron Donald haircut because I had my Glenn Richie haircut,” he said. “It was too long and looked a little ridiculous.”

Childrens Hospital airs Thursday nights at midnight on Adult Swim.

Update: In case you missed it or want to watch it again, jump after the break for the 35-second Party Down cameo. They ended up sticking it all the way at the end between the credits. But boy was it sweet.