Korean online mag MK25 recently conducted an interview with the Backstreet Boys. During the interview, a topic that came up was, "How much do you know about Korea. An artist that has caught your attention." Nick Carter answered:

"Ah, out of Korean artists, I know a group called Big Bang. Whether it's their music or fashion style, all of it seems very cool and charismatic. Especially, leader G-Dragon's fashion sense and style, I think it's sensational."

From TVXQ to Big Bang, the Backstreet Boys are slowly but surely catching onto k-pop. [Thanks to shinhdeplol for the tip]