You may wonder why local MC and producer Kardinal Offishall appears for a split second in Estelle's "American Boy" video (the one featuring Kanye West), but the two go way back. Kardi originally appeared on the British singer's 2004 remix single, "Don't Talk," and Estelle—née Fanta Swaray—became part of Kardi's Black Jays collective in 2006. Estelle and Kardinal Offishall collaborated again (with Mark Ronson producing) for the track "Magnificent," which appears on her latest......