'EXCLUSIVE: Why Jessica Alba and Allison Williams Swear by Trainer Kayla Itsines\' 28-Minute Workout'

'EXCLUSIVE: Why Jessica Alba and Allison Williams Swear by Trainer Kayla Itsines\' 28-Minute Workout'
01:47 Dec 24, 2021
'ET found out how Instagram\'s most famous trainer is inspiring people to get fit with her 28-minute bikini body workout.' 

Tags: News , entertainment news , 2016 , Entertainment Tonight , etonline , et online , et , ETtrending , etnow

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