You’ve read all of your free items this month. To register, get added benefits and unlimited access to articles, Become a Member. Already a Member? Sign in. Advertising Age Article Abstract 'I Don't Even Know What Upfronts Are,' Joan Rivers Tells E! Upfront Bash Kardashians, Seacrest and Jonas Brothers Help Pitch Ad Buyers By Jeanine Poggi, Published on May 01, 2012 1 Want more Access, Content & Connections? Upgrade to Membership. We are glad you are enjoying Advertising Age. To get uninterrupted access and additional benefits, become a member today. Become a Member Already a member? Log in.