[cnn-photo-caption image= http://i.cdn.turner.com/cnn/2008/images/05/13/art.snl.ap.jpg caption="McCain, who has been the subject of several SNL sketches this season, will appear on the show this weekend."]
(CNN) - John McCain is known to tell a joke from time to time, but how will the Arizona senator stand up next to comedian Steve Carell?
McCain is slated to appear on Saturday Night Live this weekend, during which Carell will play host, a McCain aide confirms to CNN.
The aide says the presumptive Republican presidential nominee will head to New York Saturday to rehearse for his role, though it remains unclear exactly what part he will play.
McCain hosted the comedy sketch show himself in 2002.
Democrats Barack Obama and Hillary Clinton have also made appearances on the show this year.