It's been #1 for 2 days on Daum's real time charts, and it's within the top 10 on the other major music charts as well. He managed to also rank #1 on the real-time searches for Melon, Mnet, Genie, Bugs, and Naver with this music release as well.
It's his first time being #1 on a music chart, either as himself or as a member of M.I.B. He's been gaining steady popularity lately through various variety shows such as "I Live Alone", "Hello Stranger", "I Am Going to School", "Inner Thoughts Salon", and now "Invisible Man".
Congratulations to Kangnam!