I feel like on this particular day of the challenge I don’t need to even explain myself.

Day 9 – Song you can dance to.

I know I do. And you should too. Because if you don’t then you’re probably not much fun.

Just kidding.

But seriously.

And if you haven’t seen the SNL skit where Justin Timberlake is a back-up dancer for this song, you should.

Also, if you haven’t already, check out days 1, 2, 3, 4, 5, 6, 7 and 8.