Ballmer dancing
https://vine.co/v/OpevzaX3vzD
Fergie was sitting next to Ballmer, then started singing
https://vine.co/v/Opei23HzjHw
https://vine.co/v/OpevzaX3vzD
Fergie was sitting next to Ballmer, then started singing
https://vine.co/v/Opei23HzjHw