• ASHLEE SIMPSON, 28  photo | Ashlee Simpson

Credit: FameFlynet

Published: Friday May 10, 2013 10:00 AM EDT

2013

ASHLEE SIMPSON, 28

Tip your hat to the slim singer, who accessorizes her black bikini top with loads of accessories and washboard abs on a Hawaiian beach. Her taut tummy is from working her abs isometrically (think planks and wall sits) and following a diet that avoids fried foods, sugary beverages and carbs.



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