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 Will Diddy Now Also Sell Guinness? Rapper-Entrepreneur and Vodka Spokesman in Talks to Sing Praises of Diageo Beer Brands By Jeremy Mullman, Published on June 25, 2009 6 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.