YOUNGSTOWN, Ohio (CNN) - Mandatory stops on the GOP campaign trail this year: Pennsylvania. Florida. Saturday Night Live.
Two weeks after running mate Sarah Palin made an appearance on the late-night comedy show, a McCain campaign aide tells CNN that the Republican presidential nominee will appear on the NBC program tomorrow night.
The Arizona senator has appeared on the show several times over the years.
McCain's most memorable appearance on the long running show was in October 2002, when he hosted the program for a night: In a spoof commercial hawking an album called "McCain Sings Streisand," sang several of the Democratic loyalist's songs.