As soon as Crayon Pop‘s “Bar Bar Bar” came out in 2013, it swept the nation with its catchy tune and easy-to-follow choreography.

And on a recent episode of MBN‘s Miss Back, former Crayon Pop member, Soyul shared some behind-the-scenes details about the unbelievably popular song.

According to Soyul, the song blew up so much that the group had to work pretty much all the time.

There was a time when we had to complete 10 different schedules in one day.

— Soyul

They got so busy that Soyul even recalled living in their van for an entire week.

We lived in our van for a week. We couldn’t even wash our hair, and we had to brush our teeth in the car.

— Soyul

In particular, Soyul confessed what she hated the most about being a member of Crayon Pop.

Crayon Pop’s songs weren’t really my style. I really hated that even though it wasn’t my real voice, I had to change it to force out what they wanted for their songs.

— Soyul

Although she is well-known as Jam Jam‘s mother now after their appearance on KBS‘s The Return Of Superman, she hopes to make her comeback in the entertainment world so that she can stand on stage as she has always wanted.

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Check out the full reveal below: