Backstage with Richard Ridge: Cooper & Vosk & Ridge, Oh My! Getting Candid with the Witches of WICKED

A whole lot happened in Oz before Dorothy dropped in, and Wicked has been telling that story to Broadway audiences for 15 years at the Gershwin Theatre. The milestone won't go by uncelebrated, as in just days, NBC will throw a joyous Halloween party for the ages, featuring songs from the blockbuster musical hit and a cavalcade of special guest stars, including Tony Award winners Idina Menzel and Kristin Chenoweth. Additional guest performers include Ariana Grande, Adam Lambert, Ledisi, Pentatonix and the current Broadway company of 'Wicked.' 'A Very Wicked Halloween' airs Monday Oct. 29th at 10PM ET/PT on NBC.