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 Lexus to Air Live Ads, Fueled by Social Suggestions, During NBC's 'Late Night' Improv Comedians Will Ask Viewers for Ad Concepts By Jeanine Poggi, Published on September 18, 2013 2 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.