Hailey Bieber steps out in LA after skipping the Met Gala

Hailey Bieber flashes her flat abs as she and husband Justin Bieber leave a cafe in LA

Hailey Bieber flashes her midriff in a yellow crop top as she grabs lunch with husband Justin

Katy Perry, Hailey Bieber and Blake Lively at Tiffany & Co. flagship store re-opening