By Breaking Celebrity News Staff

The Hangover's Zach Galifianakis has expanded his wolf-pack to two, and has another reason for a bachelor party.

Galifianakis, 42, is set to wed his longtime girlfriend Quinn Lundberg on August 11.

According to Celebuzz, he's already sent out invitations that live up to his humorous reputation. 

"While it has the formal and standard details of who, what, when, where -- including Zach’s full name Zachary Knight Galifianakis and his fiancée’s, Mary Quinn Lundberg -- it is also very funny," the source said.