In the latest episode of Immortal Songs 2: Singing the Legend, celebrating producer Pdogg‘s works…

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BTS | Immortal Songs 2/KBS

BTS discussed their “most frequently used” track, “FIRE”.

The song, released in 2016, features an unforgettable catchphrase. Suga‘s short-but-sassy, “bultaoreune (불타오르네)”, followed by the iconic “FIRE” intro…

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BTS’s Suga in “FIRE” intro of the MV. | @bts_twt/Twitter

… is an undeniable TV favorite — to start playing whenever there’s any fire involved!

A scene from a TV program featuring “FIRE” as background music. 

J-Hope shared, however, the catchphrase didn’t come easily.

These hook songs need that catchy phrase to go with them… Like, having that hook is important, but we were struggling because we couldn’t really decide on anything.

— J-Hope

RM then revealed that “it was Suga” who came up with the now-iconic “bultaoreune“.

Suga explained that in his hometown Daegu, in the North Gyeongsang Province of Korea, “people use the phrase quite commonly.

At first, Suga questioned it…

So I heard that people from Daegu throw around the phrase “bultaoreune” like… when they are trying to hype themselves up or… They need to pull some courage together or whatever. Kind of like, “Let’s go, let’s burn this! Let’s do this!” You know? And at first, I was like… No, that can’t be true.

— Suga

… but eventually, he “found it funny and tried recording it.”

But eventually I found it absolutely hilarious… And I realized I need to try using it somehow. So I tried recording it in my Daegu dialect…

— Suga

And like that, one of the most iconic K-Pop intros was birthed. Now, everyone can hear this GIF! ????????????

Watch the full clip below.