What was the hottest dance move of 2015?

New Year's is a few days away, which got me thinking about going out and naturally...dancing. Then I started thinking, man I wish I could do the nae nae like I see it online or do the sweetheart dance like I see at country concerts!

I like to think I can dance, but in reality, some of these moves, I just can't get to look the right way. I started looking around and saw there are a few dance moves from 2015 that look really cool -- The Whip, Nae Nae (of course), The Stanky Leg, The Break Your Legs, The Bop and more. Some are easy (The Bop) and some are not (Nae Nae).

What do you think is the hottest dance move in 2015?