Blackjacks first saw 2NE1's performance of�"Gotta Be You" last weekend and now the dance practice video for the electrifying stage has been released!

2NE1 looked like they were having one big party in their signature sporty outfits as they waved their hands in the air, calling out that special someone who they 'gotta be' with. Of course, we can't not mention their talent in singing, rapping, and dancing with a swag that is unique to 2NE1.

Check out their dance practice!