Kristen Bell Helps Promposal While Guest Host 'Kimmel Live'

By now, chances are, you've seen Jimmy Kimmel's monologue from last week where he announced that his son had open heart surgery when he was only three days old.

He's since been away from the show to spend time with his family and has had some pretty great guest hosts so far.

While filling in this week, Kristen Bell, channeled her inner "Anna" to help a high schooler get the promposal of her dreams!