While Peggy Olson is pretty much killing it these days on the new season of 'Mad Men,' Elisabeth Moss will suffer a bit of a setback on the next cycle of 'The Simpsons.' According to new reports, 'Mad Men' will lend its third major star to the long-running FOX animated series, as Moss gives voice to a pregnant woman in an upcoming episode, but how does Homer Simpson fit in to the woman's labor? Find out inside!

'Mad Men's Peggy Olson may not work for Sterling-Cooper-Draper-Pryce anymore, but that isn't stopping her from hanging around Don Draper and Roger Sterling's old stomping grounds. According to Vulture, Elisabeth Moss will lend her voice to an episode of 'The Simpsons' next season, playing a pregnant woman named Gretchen who gets stuck in an elevator, gives birth and names the baby Homer, Jr.

Titled "Labor Pains," the episode will air November 13 as part of 'The Simpsons's 25th season. 'Mad Men' stars Jon Hamm and John Slattery have previously lent their voices to the season, while 'The Simpsons' season 25 will also feature appearances from comic legend Stan Lee, cartoon rival Seth MacFarlane, as well as ‘The Newsroom‘ creator and acclaimed writer Aaron Sorkin.

What say you? Will you listen in this fall to hear 'Mad Men's Peggy Olson pregnant once more on 'The Simpsons?' Watch ‘The Simpsons’ go ‘Mad Men’ below, and give us your thoughts in the comments!