Orange Caramel 'Catallena' Trends No. 1 On Twitter Thanks To IZ*ONE

Swing Entertainment

Have you been a K-Pop fan for a long time?

If you do, you might recall years ago, was a very popular sub-unit group of After School which was known for their quirky concepts and catchy songs.

One of their well known songs is none other than 'Catallena'! Take a look at the music video below if you have not seen it before.

On Sept. 13, 3 members of , WonYoung, ChaeWon and HyeWon decided to cover 'Catallena' for their online concert.

It was such a hot issue that the song 'Catallena' trended number one on Twitter!

Orange Caramel 'Catallena' Trends No. 1 On Twitter Thanks To IZ*ONE

Swing Entertainment

Those who were watching the online concert mentioned that the g