Stephen Colbert gets his groove on to the Philadelphia Mummers. Photo by J. Smith for GPTMC.

With the Pennsylvania primary fast approaching, FishbowlNY frenemy Stephen Colbert is broadcasting from the City of Brotherly Love this week. The Greater Philadelphia Tourism Marketing Corp. (GPTMC) threw Colbert Report cast and crew a party last night. As you can see from the photos, there was much revelry, dancing and dudes in goofy hats.

After the jump, the city's mayor wonders exactly what he's gotten himself into.

Stephen Colbert with Philly mayor Michael Nutter