It's Ellen's 1,300th show -- and it's going to be a big one! She's marking the milestone with a show full of her favorite moments from the past eight years; from the biggest celebrities to her favorite kids, to all the hilarious games -- and much more! There's no one better to join Ellen on the anniversary show than her favorite guest and good friend, ALLISON JANNEY. Since the first season, Ellen and Allison have competed in all sorts of challenges -- and today Allison will make yet another attempt to unseat Ellen as champion. Plus, today Ellen is going to do something for a loyal viewer that she's never done before!