BTS had their third win with "Run", and to celebrate Jungkook initiated an ass-dropping session. You can skip to 1:32 for that. The peeps over at tumblr made some good gifs. View them after the jump.
Now that's how you celebrate a 3rd win!
Also this reminds me of a move from SECRET's "I'm in Love" choreo @2:50.
Bless that dance move.