Oh, I LOVE that. In fact, the very first time I heard this song was on SNL when Justin did this dance. I think of that skit every time I hear the song.
I have to be truthful, I cannot tell a lie, I feel I must confess........................................... .... to have been doing the Justin(e) "we're the dancers" (with actions) for days since I saw this
it's time for me to go interact with the real world for a wee while, I hope that the day brings more lulz and smiles for you