'Today Show' co-host Meredith Vieira is officially leaving the NBC morning show, she announced during Monday's broadcast.

"After months of personal reflection and private conversations between my family and my friends, I've decided to leave 'Today,' in June," she said, sitting next to Matt Lauer and Al Roker.

Vieira, who has co-hosted the show with Lauer for the past five years, said she has decided to spend more time with her husband, who suffers from multiple sclerosis, and their three children.

Ann Curry will take over Vieira's chair, and NBC correspondent Natalie Morales will take over Curry's news desk position.

"I feel like the high school computer nerd who was just asked to the prom by the quarterback of the football team," an emotional Curry said, calling Vieira a "gift to this broadcast" and if it was her choice, Vieira would stay on 'Today.'