But that's the fun of opportunities like this, in which some of your favorite singles and doubles stars have a go at "Rudolph the Red-Nosed Reindeer." See all the follies here: Knowing that world ...

While former SNL hosts, like Paul Rudd, and cast members, like Maya Rudolph, could be seen singing their hearts out, Littrell opted to pass the mic to Seinfeld, who was smiling and clapping along ...