By peoplestaff225
Updated June 13, 2008 10:30 AM
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Bella Thornton, 3 ½, helped actor/singer dad Billy Bob Thornton, 52, with a few tunes as he performed andsigned autographs with his band The Boxmasters on Tuesday, June 10thin Los Angeles, CA. Mom is Connie Angland.

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Photo by Kevin Winter/Getty Images.