Chief Keef, the 16-year-old unsigned rapper from Chicago, is still on house arrest at his Grandma's, but now he has a Kanye West remix to his name, because technology has had something of an effect on musical collaborations. Instead of recording in the studio together, Kanye sent some producers from his new label, G.O.O.D. music, to Keef's home in Chicago, where they set up a laptop and a microphone. Keef typed out a verse onto his iPhone on the spot, then yelled into a microphone for a few minutes, and this banger of a street remix was born.

Viacom chairman Sumner Redstone turns 86 today. WNBC's Sue Simmons is turning 66. Former Secretary of State Henry Kissinger is 86. ABC News anchor Cynthia McFadden is turning 53. Actor Paul Bettany is 38. TV Chef Jamie Oliver is 34. Fashion designer Behnaz Sarafpour turns 40. The rapper Jadakiss is turning 34. André Benjamin (otherwise known as André 3000) is 35. Actor Richard Schiff (The West Wing) is 54. Lou Gossett Jr. turns 73. And Todd Bridges, your second-favorite adopted child from the '80s sitcom Diff'rent Strokes, turns 44 today.

Rappers have been dropping brand names in their lyrics for cash for years; it's tasteless, but widespread. But why would you turn a memorial track for your dead friend into a Coogi ad?