Picture - David Letterman and Zac Barnett at Ed Sullivan Theater New York City New York United States, Wednesday 16th July 2014

Zac Barnett - Celebrities at the Ed Sullivan Theater for the 'Late Show with David Letterman' - New York City, New York, United States - Wednesday 16th July 2014

zac barnett late show with david letterman 4289249

More: 'Late Show with David Letterman' celebrities