Bella Hadid, Lily-Rose Depp, and More Prove Why a Six-Pack is Fashion’s Best New Accessory InlineSeptember 24, 2016Save StorySave this storySave StorySave this storyExpandPhoto: Splash News1/7Bella HadidExpandPhoto: REX / Shutterstock2/7Lily-Rose DeppExpandPhoto: AKM-GSI3/7Stella MaxwellExpandPhoto: REX / Shutterstock4/7Gigi HadidExpandPhoto: Getty Images5/7Serena Williams