Hailey Bieber shows off her toned abs in a crop top with drawstring cargo slacks

Ariana Grande, Miley Cyrus, Selena Gomez and Hailey Bieber sign 'Bans Off Our Bodies' petition

Nina Agdal stuns in yellow skirt and plunging crop top at grand opening of the Hard Rock Hotel NYC

Getting It Done! Kristin Cavallari Shows Off Ripped Bare Abs in Crop Top Following Grueling Workout Session