It's here! Today is the huge finale of Ellen's exciting All Terrain Game Week. Ellen's audience members have been competing for the chance to win the Grand Prize -- and today the finalists battle it out one last time! One of them will win a brand new GMC Terrain! The competition is fierce here, but it's just as intense on "American Idol"! MICHAEL LYNCHE is stopping by to tell Ellen what it's like to make it all the way to the Final Four -- and will give a performance you won't forget! Then, TERI HATCHER has been married four times, been in a car accident, had her house burned down, and even shot a neighbor... all on "Desperate Housewives," that is! It's not ending there; they've been renewed for two more seasons and she's here to tell Ellen about the excitement in store. In real life, Teri is lots of fun. Ellen has even played matchmaker for her, but Teri didn't take her suggestion! Maybe she'll listen to Ellen's great suggestions today! Also, Ellen has been getting tweets from the popular band PARAMORE. They wanted to perform on the show -- and Ellen didn't hesitate to say yes! They'll perform a song from their latest hit album, "Brand New Eyes."