Singer IU, who has been dubbed as “three-high note singer”, impressed the fans with her flawless four-high note performance in her previous concert.

On September 12th, Loen Entertainment released a special review clip of IU’s concert tour. The video shows some highlights performances and behind-the-scenes footage. Especially, while performing her great hit “Good Day”, IU showed ‘4-high note’ instead of ‘3-high note’, and got fans’ explosive cheers.

After successfully pulling off the neck-breaking performance, put four of her fingers up, proudly revealing that she had done it.

Netizens commented, “IU is amazing. Three was not enough for her,” “Is she a human?” “She’ll improve beyond imagination” and more.

Watch her ‘4-high note’ from 2:35 mark.