^ I don't think it's Ayumi's version they used, as she is not very popular in Korea. I think it's actually a different more well known song that "Tasking" sampled from. Really similar to the guitar version played in the 2006 arena tour
lol people keep hearing tasking in shows like "Make me a supermodel" or other shows that use a lot of background songs. I wanna find out what's the original song's name!
