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 AKB48 Takes Equal Parts Choir, Slumber Party and Beauty Pageant, Mixes Well Jumbo Musical Group Is a Marketing Machine Unrivaled in Japan By Anita Chang Beattie, Published on December 05, 2011 0 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. Register Now Already a member? Log in.