In this undated photo released by ATO Records, members of Alabama Shakes, from left, Zac Cockrell, Brittany Howard, Steve Johnson and Heath Fogg are shown. Alabama Shakes began playing in packed ... more 
In this undated photo released by ATO Records, members of Alabama Shakes, from left, Zac Cockrell, Brittany Howard, Steve Johnson and Heath Fogg are shown. Alabama Shakes began playing in packed houses for enthusiastic fans after putting out a hastily released EP just six months ago. And this week the Athens, Ala., foursome will have a jam-packed schedule over five days at the South By Southwest Music Conference and Festival. (AP Photo/ATO Records, Don VanCleave) less 
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Associated Press | Photo By ATO Records, Don VanCleave
Tue, Mar 13, 2012 8:20 AM EDT