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 storyPhoto: Splash News1/7Bella HadidPhoto: REX / Shutterstock2/7Lily-Rose DeppPhoto: AKM-GSI3/7Stella MaxwellPhoto: REX / Shutterstock4/7Gigi HadidPhoto: Getty Images5/7Serena Williams