Here's how her life has changed since welcoming her baby daughter, Cali.
It's not all runways and parties.
You read that correctly.
She lets us in on her secrets.
Tell us everything.
Check out her week in workouts.
Models and Snapchat: the peanut butter and jelly of the 21st century.
"I cannot miraculously shave my hip bones down."
It's easier than you think.
Let's just say there's no turning back.