The Just For Laughs people haven't listed this on their schedules yet, but Mike Birbiglia announced (as did David Letterman last night) that he'll be debuting his new one-man show, "My Girlfriend's Boyfriend," at the Montreal festival this July (followed by JFL Toronto).

Birbiglia is hard at work reworking old jokes and developing new bits, and we got our first peek at such last night on Letterman. Roll the clip.

Birbiglia is playing several dates at Union Hall in Brooklyn this month (already sold out for May 10-11 and May 24-25) to work out the new hour. In between, he'll be performing weekends in Tampa and Cincinnati, so you kids in Florida and Ohio also have a chance to check out his work in progress.