Improv Everywhere - including the Food Court!
Via Very Short List, this really hilarious video of “guerilla musical improv” at a Los Angeles shopping mall food court. I hooted and hooted. It’s a scream. The patron/audience reactions are so funny.
Improv Everywhere has a great blow by blow description and photos of the rehearsal process. These guys are inspired.
Hello. I am 
Now that was funny! Pretty good singing too.
Now where is my napkin? I just spilled my drink…