"Live"'s Halloween extravaganzas always pull out all the stops and earn rave reviews. This year promises to be even bigger with Ryan joining the "Live" Halloween madness for the very first time and with more than 70 costumes to be featured throughout the hour. Kelly and Ryan will take on pop culture phenomena such as "Game of Thrones," "Stranger Things," "The Handmaid's Tale" and the Taylor Swift mega-hit "Look What You Made Me Do." Plus, "Watch What Happens Live" host Andy Cohen and HGTV's Drew and Jonathan Scott sit down to chat with the hosts about some "new projects" that just might involve Kelly and Ryan, and "The Bachelor" and "Who Wants To Be A Millionaire" host Chris Harrison makes a special cameo appearance.In addition, comedian and digital creator Colleen Ballinger will bring her "Miranda Sings" alter ego to the party, and the 2017 festivities will kick off with a new twist: Viewers at home will get an exclusive behind-the-scenes window into the final preparations for the action-packed broadcast with a special Facebook Live pre-show from 8:30-9:00 a.m., co-hosted by Ballinger, along with Kelly and Ryan."Live"'s annual Halloween Costume Contest will close out the hour with studio audience members walking away with $10,000 in prizes. And the next day, November 1, Kelly and Ryan will announce the winners of "Live's Homemade Halloween Costume Contest." "Live" has teamed up with Amazon Prime to give away more than $10,000 in Amazon.com prizes to viewers with the best and most creative homemade costumes or "boxtumes."