After going through a trio of impressive debut performances last week, CNBLUE grabbed 1st place throughout all music portal sites, proving that they are 2010's first super rookie group. Yesterday, CNBLUE returned to Music Bank for the second time, and they seemed to be not as vocally impressive than their first debut stage, perhaps because of the on going plagiarism controversy in their mind. Today, they performed I'm a Loner on Music Core and they seemed to be better than yesterday. Check out their performance below! http://www.youtube.com/watch?v=xNOSCOW3yOo Unfortunately, CNBLUE's debut song I'm a Loner was claimed to be plagiarized off of Ynot's Blue Bird recently. CNBLUE officially responded to plagiarism allegations, revealing a strong statement that they did not plagiarize at all. Hopefully this controversy clears up soon & doesn't taint CNBLUE's reputation!