Amy Poehler Pops Won't Make 'SNL'

10/25/2008 8:55 PM PDT

Amy Poehler Pops -- Won't Make 'SNL'

Sources tell TMZ Amy Poehler has been in labor all day and just had a baby boy.

Obviously, Amy will not perform on "Saturday Night Live" tonight.

We're told Seth Meyers will do Weekend Update all by his lonesome, but there's no word on whether her "Bronx Beat" skit with returning cast member Maya Rudolph -- who will be playing Michelle Obama tonight -- has been totally scrapped or not.