Natalie Portman works up a sweat as she goes for a solo hike around Griffith Park in LA

Lucy Hale showcases toned abs and honed limbs in tank top and leggings as she runs errands in LA

Alessandra Ambrosio leaves glam session in LA in colorful graphic t-shirt and shiny yellow skirt

Twiggy reveals she turned down Hollywood heartthrob Steve McQueen at a party in LA