Twenty One Pilots accepts first ever Grammy award in their underwear

When their band's name was called on Sunday night as the winners of the Best Pop Duo/Group Performance at the GRAMMYs, the members of Twenty One Pilots immediately took off their pants.

Josh Dun and Tyler Joseph stripped down to their boxer briefs to accept their first-ever Grammy for "Stressed Out."

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The hilariously unexpected move garnered massive laughs from the star-studded crowd.

"This story starts in Columbus, Ohio, and it was a few years ago," Joseph started off their speech. "It was before Josh and I were able to make money playing music."

See photos of the moment below:

He went on to recall watching the GRAMMYs a couple of years ago with his bandmates at his house.

"As we were watching, we noticed that every single one of us was in our underwear," he continued. "Josh turned to me and said, 'If we ever win a Grammy, we should receive it just like this."

"So, not only is this amazing, but I want everybody who's watching at home to know that they could be next."

The moment was one of the most memorable of the fun ceremony.

See photos from the red carpet:

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