PHOTOS: The best 20 seconds of Houston rap classics to help you time washing your hands We're all supposed to be washing our hands for at least 20 seconds at a time. Lucky for us, Houston rappers like Paul Wall (left), Bun B (middle) and Slim Thug (right) have provided us with memorable lyrics we can recite to help us time out that 20 seconds. The best 20 seconds of Houston rap songs to recite while you're washing your hands ...
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