Alessandra Ambrosio flaunts her toned tummy in a crop top and jeans for a casual lunch with friends

Amelia Hamlin, 19, goes braless and flashes her taut waist in a tiny crop-top and sweat pants

Rumer Willis flashes her flat belly in grey crop top and compression shorts during outing in Malibu

Lori Harvey shows off her cleavage in a revealing crop top as she picked up groceries