Zooey Deschanel & Alyson Hannigan: 'Letterman' Ladies!

Alyson Hannigan is a beauty in blue while heading into the Ed Sullivan Theatre for an appearance on The Late Show with David Letterman on Wednesday (May 8) in New York City.

Earlier in the day, the 39-year-old How I Met Your Mother actress was seen leaving her hotel with her husband Alexis Denisof and their daughters Satyana, 4, and Keeva, 11 months.

Zooey Deschanel was spotted heading into the The Late Show‘s theatre the day before to chat about the season finale of her show New Girl, airing next week.

FYI: Alyson is using her Graco infant seat and stroller.

15+ pictures inside of Zooey Deschanel and Alyson Hannigan at Letterman…