who were the all the artists?
t-ara, big bang, big bang, busker busker, girls' generation-tts, wonder girls, 2ne1, psy, jung eunji & seo in guk, gain, 2, lee seung gi
which artists charted in the top 2 on the year-end chart?
psy
who charted number 2 on the year-end chart?
busker busker