Earlier, Steve Martin posted an image of himself with Paul Simon, Dan Aykroyd, Chevy Chase, Tom Hanks, and Martin Short on Twitter. Turns out they're all guesting tonight on "Saturday Night Live" with host Justin Timberlake.  The only ones missing from the image who are also making appearances are Andy Samberg, Alec Baldwin, and Candice Bergen. Please follow The Wire on Twitter and Facebook.Join the conversation about this story »