Family Guy creator Seth MacFarlane is set to voice a character on the season finale of The Simpsons this year, Entertainment Weekly tells us. The episode–which was originally supposed to air next season–has MacFarlane as a smooth operator named Ben who tries to charm Marge Simpson. “We thought we had a great part that he’d be perfect for, and it would be great to have him on our show, so it worked out just right,” said Simpsons executive producer Al Jean. “There’s been a little rivalry (between the two series). We’re both humor shows and we make jokes, but it’s always been friendly.” The episode is set to air May 19th.