This video is so interesting. Sunny and Hyoyeon are singing 2NE1's "I Am The Best" .
This is KPOP Dance Cover Final Round Recording.
This proves that there's no barriers between girl groups despite of tough competitions.
SONES and Blackjacks commented, "WOW! I'm SONE but I love 2NE1!" , "They are so cool!" , "This is amusing, Sunny and Hyoyeon are so cute!"
Source: withsosiz9dot2