4. "Still Crazy After All These Years"
The title track to Paul Simon's 1975 LP was a moderate hit that just barely scraped the Top 40, but it gave him a perfect song to sing on Saturday Night Live. He's a close friend of show creator Lorne Michaels and has been on more times than some actual cast members, even meeting his wife Edie Brickell on the show's set. He sang "Still Crazy After All These Years" in a turkey outfit for the show's Thanksgiving episode in 1976, and then did it again for the show's 40th anniversary special in 2015. This time, he left the turkey suit at home.