(NEWSER) - Diddy may be mixing beer with his vodka soon. Rapper-pitchman-entrepreneur Sean Combs is in talks to help market Guinness and Red Stripe, sources tell Advertising Age. Combs has already worked with Diageo, the British company behind the brews, on its Ciroc vodka brand. If the deal goes through, Combs would buck a hip-hop artist trend of endorsing one only beverage at a time, a la Jay-Z (Bud Select), Kanye West (Absolut), and KRS-One (Smirnoff). More»