Trump performed his famous “YMCA” dance at an inaugural ball after cutting a cake with a sword. Speaking to military members after his first dance with Melania after being inaugurated, the president vowed to rebuild the military. A soldier lent him and Vance a sword, which they used to cut an elaborate cake.

Things took an unexpected turn when Trump started dancing with the sword in hand, moving to the beats of the disco song YMCA by the band Village People.