Pdogg is BTS‘s main producer who has worked with them since their debut. His many awards throughout the years prove that he knows what he’s doing. With his success, every single music equipment is available for his use…but he doesn’t always consider them.

In an interview with business magazine Fast Company, Pdogg revealed numerous behind-the-scenes information on BTS, how they make music, and more.

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| @hitmanb/Twitter

Discussing their 2016 hit song “Fire”, Pdogg shared that the process behind it was more complex than people would expect. When they were mostly done with the song, they lacked a line that would make it absolutely perfect.

With BTS’s song “Fire,” the track was basically finished, we had about 90% of the songwriting done. But we still didn’t have the “불타오르네”…that little [spoken-word] line that’s the highlight of the song.

— Pdogg to Fast Company

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| Bighit Entertainment

It was rapper Suga who randomly suggested the iconic “Bultaoreune” line. It would eventually be given to him to perform in the track.

We were discussing this together with Hitman Bang, myself, the artists, just brainstorming. And out of nowhere, Suga said those words, “불타오르네,” and we felt like, this is what’s going to really tie the song together and complete it smoothly.

— Pdogg to Fast Company

It was during this brainstorming session that they recorded Suga’s spark of brilliance. The mic they used was a simple and cheap one that was just for “recording guidelines”, something they can use as reference later on.

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| pdogg428/Instagram

When it was time to actually record “Fire” in a legitimate studio, however, Pdogg and the others realized that the vibe of “Bultaoreune” wasn’t accurately captured.

But then later on when we were in the studio and we had our expensive equipment, we still couldn’t get that loose and edgy feel that Suga had.

— Pdogg to Fast Company

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As a result, they decided to use the original recording in the final version.

So we ended up using what we had recorded earlier during our brainstorming session—that’s what ended up on the album.

— Pdogg to Fast Company

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| Sam Rios/Unsplash

With the overall quality of “Fire”, no one would’ve guessed that the opening line was recorded separately!