President Barack Obama and his wife Michelle -- along with first dog, Bo -- surprised a group touring the White House one day after the 2013 Inauguration.
The first lady tweeted news of the surprise Tuesday afternoon, providing a link to a live feed of the surprise:
Guests were greeted with a lot of hand-shaking, and Obama even gave one visitor a fist bump. BuzzFeed's Zeke Miller reports members of the group included staff, volunteers and alumni from Obama for America and the DNC.
Watch a video of the Obamas greeting visitors above.