Kate Upton Steps Out to Host Express Spring Fling Event!

Kate Upton looks gorgeous as she poses for a few photographs while attending the Express Spring Fling Event held at Union Square on Tuesday (March 3) in San Francisco, Calif.

The 22-year-old model, who served as host for the evening, made sure to greet fans before she took Express contest winners shopping around the store.

PHOTOS: Check out the latest pics of Kate Upton

“Hello San Francisco!,” Kate shared on her Twitter account along with a picture of her stunning view. “Can’t wait to see you at @expressrunway’s Spring Fling!”

10+ pictures inside of Kate Upton hosting the Express Spring Fling Event…