This weekend "Saturday Night Live" will get a double dose of Paul, as Paul Rudd hosts and Paul McCartney appears as the musical guest. In this week's promos, Rudd and Andy Samberg plug the show with a little help from Santa Claus, a couple Paul Lyndes impressions and a cartoon bug. This has to be one of the silliest set of promos to date, so we can't wait to see how funny Rudd will be with the entire cast this weekend. We don't know about you, but we're crossing our fingers for a Rudd/McCartney collaborative sketch. Come on, "SNL"! Don't let us down.