Oh, that Beyoncé...

While absorbing Beyoncé's B'day, my ears settled on one standout: "Suga Mama." Producer Rich Harrison's specialty for creating tracks with this really dense polyrhythmic percussion (here it's what sounds like real-live drums, subtle bongos, and that woodblock effect which anchored Amerie's "1 Thing") finds a match in Beyonce's vocal. She's never sounded more feral, more there (the lyrics get mucho points: "I’ma be like a jolly rancher that you get from the corner store" – mm, tell it girl). The guitar hook, reminiscent of the one gracing Marvin Gaye's "I'll Be Doggone," stinks of sex.