BABYMONSTER‘s Ahyeon recently made a hilarious mistake that quickly earned her love online! BABYMONSTER and 2NE1 | @YGBABYMONSTER_/Twitter While on stage opening for 2NE1, Ahyeon took a quick sip of water. [Video could not be displayed] However, she quickly learned that the water belonged to 2NE1 and immediately panicked! [Video could not be displayed] Even…