Zach Galifianakis to wed!

Zach Galifianakis and Quinn Lundberg © Martin Roe/Retna 

Zach Galifianakis has gotten down on one knee and proposed to his longtime love Quinn Lundberg. The couple are to wed on August 11th, according to Celebuzz, who obtained a copy of the wedding invite.

A source told Celebuzz, "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. Zach included a drawing of himself and his bride-to-be. He made sure he looked like a little troll, while Quinn is a stunning blonde princess."

It is not disclosed when the Hangover star, 42, and his fiancée, who is a vice president and co-founder of Growing Voices (a charity dedicated to supporting community-based projects and organizations that encourage development and reconstruction at the local level), got engaged. Zach's rep was not available for comment.