Tucker surprises 'superfan' celebrating 50th anniversary at Children's National

Pauline Barnes is a Patient Care Tech in the Pediatric Intensive Care Unit at Children's National and is celebrating her 50th year caring for children and their families.

During her five decades of work, Pauline has become a mentor to many of her colleagues and a pillar of support to thousands of parents and their children.

She has been called an amazing friend, an incredibly hard worker and is affectionately known as the "Mayor of the PICU!"

Pauline is also a HUGE fan of FOX 5's Tucker Barnes – so who better to honor her with a special surprise than Tucker himself!

Check out the cool surprise in the VIDEO PLAYER above!