The Seattle Times

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ALAN BERNER / THE SEATTLE TIMES
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Saturday, April 21, 2012

Topping off Day 1 of Seattle Center celebrations

Doing a vigorous version of the Twist, popular 50 years ago, a "flash mob" shows up Saturday on the Fountain Lawn, sang a couple of songs, including a recent Adele hit, danced and then disappeared after a couple of minutes.