Mine was to have the vocal/cardiovascular stamina to be able to get through this song and to actually hold the note at the end: http://www.youtube.com/watch?v=FUl0w4S5r2k
You definitely should! A friend of mine holds a flash mob class where they learn dances or songs and perform in public randomly and that's one of the routines that they do. So cool!
I love that dance! (plus Shufflebot makes me absurdly happy) I always think about it, but never actually set it as a goal. Although I do want to take a break dancing class at goal