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:

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Twenty One Pilots at the 2017 GRAMMYs
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Twenty One Pilots at the 2017 GRAMMYs
LOS ANGELES, CA - FEBRUARY 12: Recording artists Josh Dun (L) and Tyler Joseph of Twenty One Pilots, accept the award for Best Pop Duo/Group Performance, onstage during The 59th GRAMMY Awards at STAPLES Center on February 12, 2017 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)
LOS ANGELES, CA - FEBRUARY 12: Recording artists Josh Dun (L) and Tyler Joseph of Twenty One Pilots, accept the award for Best Pop Duo/Group Performance, onstage during The 59th GRAMMY Awards at STAPLES Center on February 12, 2017 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)
LOS ANGELES, CA - FEBRUARY 12: Recording artists Josh Dun (L) and Tyler Joseph of Twenty One Pilots, accept the award for Best Pop Duo/Group Performance, onstage during The 59th GRAMMY Awards at STAPLES Center on February 12, 2017 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)
LOS ANGELES, CA - FEBRUARY 12: Recording artists Josh Dun (L) and Tyler Joseph of Twenty One Pilots, accept the award for Best Pop Duo/Group Performance, onstage during The 59th GRAMMY Awards at STAPLES Center on February 12, 2017 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)
LOS ANGELES, CA - FEBRUARY 12: Recording artists Josh Dun (L) and Tyler Joseph of Twenty One Pilots, accept the award for Best Pop Duo/Group Performance, onstage during The 59th GRAMMY Awards at STAPLES Center on February 12, 2017 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)
LOS ANGELES, CA - FEBRUARY 12: Recording artists Josh Dun (L) and Tyler Joseph of Twenty One Pilots, accept the award for Best Pop Duo/Group Performance, onstage during The 59th GRAMMY Awards at STAPLES Center on February 12, 2017 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)
LOS ANGELES, CA - FEBRUARY 12: Recording artists Josh Dun (L) and Tyler Joseph of Twenty One Pilots, accept the award for Best Pop Duo/Group Performance, onstage during The 59th GRAMMY Awards at STAPLES Center on February 12, 2017 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)
LOS ANGELES, CA - FEBRUARY 12: Recording artists Josh Dun (L) and Tyler Joseph of Twenty One Pilots, accept the award for Best Pop Duo/Group Performance, onstage during The 59th GRAMMY Awards at STAPLES Center on February 12, 2017 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)
LOS ANGELES, CA - FEBRUARY 12: Recording artists Josh Dun (L) and Tyler Joseph of Twenty One Pilots, accept the award for Best Pop Duo/Group Performance, onstage during The 59th GRAMMY Awards at STAPLES Center on February 12, 2017 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)
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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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Grammy Awards 2017: Red carpet arrivals
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Grammy Awards 2017: Red carpet arrivals
LOS ANGELES, CA - FEBRUARY 12: Singer Lady Gaga attends The 59th GRAMMY Awards at STAPLES Center on February 12, 2017 in Los Angeles, California. (Photo by Jon Kopaloff/FilmMagic)

Tina Guo flashed some leg in a soft pink strapless number with a glittery bodice.

(Photo by Frazer Harrison/Getty Images)

Big Lou rocked a orange tuxedo blazer over a white dress shirt that's slightly unbuttoned.

(Photo by Steve Granitz/WireImage)

Jane Zhang looked stunning in a nude long gown with feather detailing. The sophisticated number showed a hint of cleavage!

(Photo by Steve Granitz/WireImage)

Sophie Beem showed off her ample cleavage in a fierce white jumpsuit with leaves embroidered on top.

(Photo by Alberto E. Rodriguez/Getty Images for NARAS)

Dapper! Joey Harris looked totally sexy in his velvet blazer and some tight black pants to match.

(Photo by Alberto E. Rodriguez/Getty Images for NARAS)

White hot! Giuliana Rancic dazzled in a bright mini dress that showed off her California glow. She paired the fun frock with some pointy pumps of the same color.

(Photo by Steve Granitz/WireImage)

Zach Williams rocked all-black in a snazzy pant and blazer combo with some sleek boots to match.

(Photo by John Shearer/WireImage)

Natalie Grant kept it simple in a black dress that graze her ankles.

(Photo by Steve Granitz/WireImage)

Jill Scott slayed in a striped pantsuit that showed a hint of cleavage underneath.

(Photo by Steve Granitz/WireImage)

Michelle Pesce flashed some major skin in a sexy black bra with high-waisted metallic flare pants.  

(Photo by John Shearer/WireImage)

Sexy! Tory Lanez put his own unique twist to the classic tux with an out-of-this-world blazer.

(Photo by Steve Granitz/WireImage)

Talk about making a statement! Joy Villa rocked a bizarre frock in patriotic colors of red, white and blue that reads: "Make America great again."

(Photo by Steve Granitz/WireImage)

Girl Crush looked she jumped into the ball pit at a nearby McDonald's before hitting the red carpet! She definitely made heads turn.

(Photo by John Shearer/WireImage)

Busty babe! Tinashe showed off major cleavage in a seriously sexy cutout dress. 

(Photo by John Shearer/WireImage)

Jamie Woods hit the red carpet wearing a simple dark dress -- and she looked absolutely perfect!

(Photo credit should read MARK RALSTON/AFP/Getty Images)

Music producer HazeBanga ditched the classic tux for a head-turning patterned silk shirt.

(Photo by John Shearer/WireImage)

Composer Joss Favela was all smiles in his sophisticated black tux.

(Photo by Frazer Harrison/Getty Images)

Daniel Powter wore a matching button-down and blazer that features bright pops of color.

(Photo by Jon Kopaloff/FilmMagic)

Ryan Seacrest looked oh-so-handsome in a unique tan velvet blazer with a white button-down shirt underneath.

(Photo by John Shearer/WireImage)

DJ Kaskade looked handsome in all black ... but the awkward length of his dress pants has us scratching our heads.

(Photo by Jon Kopaloff/FilmMagic)

Lauren Daigle shimmered down the red carpet in a slinky nude gown.

(Photo by Alberto E. Rodriguez/Getty Images for NARAS)

Rapper Desiigner left his shirt at home -- giving us an eye-catching look at his rock-hard abs.

(Photo by Alberto E. Rodriguez/Getty Images for NARAS)

Every inch of Kriss Mincey's curve-hugging white and nude frock is absolute perfection!

(Photo by John Shearer/WireImage)

Daya flashed her toned pins in a simple long-sleeved LBD with pleated detailing.

(Photo by Alberto E. Rodriguez/Getty Images for NARAS)

Kristin Cavallari dazzled in a sexy dark gown with a thigh-high slit and plunging neckline. She wore her long blonde tresses in a messy ponytail. 

(Photo by John Shearer/WireImage)

What's their age again?! Musicians Matt Skiba, Travis Barker and Mark Hoppus of Blink 182 hit the red carpet in their most unique outfits.

(Photo by Steve Granitz/WireImage)

Elle King took the term "flower power" to a whole new level! The singer even rocked a floral tiara on her head! 

(Photo by Lester Cohen/WireImage)

Musicians Ray Luzier of Korn, James Shaffer of Korn, son D'Angelo Draxon Shaffer and Brian Welch of Korn opted for a classic rockstar looks with sharp black blazers and casual footwear.

 (Photo by Alberto E. Rodriguez/Getty Images for NARAS)

Musician Elvana Giante opted for a eyebrow-raising look in a constructed, black belted dress.

Photo by Alberto E. Rodriguez/Getty Images for NARAS)

A power outfit for a power mama! Kris Jenner slays the red carpet in a little black lace dress, strappy heels and minimal jewelry. 

(Photo by Lester Cohen/WireImage)

The guys from music band, Weezer opted for simple looks in tuxes and sweaters. 

(Photo by Steve Granitz/WireImage)

Country heartthrob Thomas Rhett strayed from the traditional black tuxedo and opted for a white jacket and bow-tie to match, complete with velvet loafers.

(Photo by Lester Cohen/WireImage)

Musician Mo Sabri looks dashing in a fitted traditional dress. (Photo by Jon Kopaloff/FilmMagic)

Camila Cabello opted for a classic, floral tulle gown. She completed her look with a diamond choker, soft waves and mini clutch.

(Photo by John Shearer/WireImage)

Singer Enya accessorized her simple, cream-colored dress with a dazzling cape and minimal jewelry. 

(Photo by Alberto E. Rodriguez/Getty Images for NARAS)

TV personality Shaun Robinson opted for a geometric cut-out dress in a olive shade that looks amazing on her beautiful skin tone.

(Photo by Steve Granitz/WireImage)

DJ Caroline D'Amore went for a white, jewel encrusted two-piece outfit that gives us major Hollywood vibes. 

(Photo by John Shearer/WireImage)

Singer Rabyt wore a sexy little black dress with a daring plunging neckline that left little to the imagination.

(Photo by Jon Kopaloff/FilmMagic)

Rapper MeLo-X turned heads with a camo suit that gave a whole new meaning to the term "natural look."

(Photo by John Shearer/WireImage)

Recording artist Hillary Scott of Lady Antebellum was a dazzling vision in a star-embellished gown that accentuated her beautiful curves. 

 (Photo by John Shearer/WireImage)

Emerald city! Singer Tori Kelly looks beautiful in a ruffled green, off-the-shoulder dress that compliments her fit figure and soft, beachy waves.

 (Photo by Steve Granitz/WireImage)

Actress Kat Graham rocked a one-shouldered, striped dress and completed her look with sleek, pin-straight hair and a bold red lip.

(Photo by John Shearer/WireImage)

Model Bella Harris had us scratching our heads with this unique look.

(Photo by Steve Granitz/WireImage)

Singer Kaya Jones shows off her killer legs in this short floral number that has us daydreaming of spring.

(Photo by Jon Kopaloff/FilmMagic)

"Peter Pan" singer Kelsea Ballerini gives us major flower power vibes in this whimsical, dreamy dress from Ines di Santo. 

(Photo by Steve Granitz/WireImage)

Recording artist Ziggy Marley kept his look simple and sharp with a white button-down and grey vest.

Photo by Lester Cohen/WireImage)

Singer Santigold turned heads in this pink peter-pan collared dress and platform strappy sandals. 

(Photo by Steve Granitz/WireImage)

Actor Michael Keaton and songwriter Sean Douglas look dashing in sharp tuxedos and classic bow-ties. And of course, Keaton's signature shades. 

(Photo by Frazer Harrison/Getty Images)

Singer Georgia Jarman is pretty in pink with an off-the-shoulder pink gown and black detailing. 

(Photo by John Shearer/WireImage)

DJ Steve Aoki went for an all-black ensemble in a sharp tuxedo and fitted slacks.

(Photo by John Shearer/WireImage)

Woah! Singer Halsey left little to the imagination and wore a daring electric blue silk pantsuit -- and nixed the shirt altogether. 

(Photo by Lester Cohen/WireImage)

Singer Malina Moye looked beautiful in a floral frock that showed off her insanely toned arms.

(Photo by Jon Kopaloff/FilmMagic)

Gnarly Davidson (aka CeeLo Green) stole the red carpet show in an all-gold ensemble that had us wondering what look he was trying to pull off.

(Photo by John Shearer/WireImage)

Singer Ryan Tedder's look took a modern spin Sunday night and opted for an ultra-skinny tie to complete his outfit

(Photo by Jon Kopaloff/FilmMagic)

Heartthrob Nick Jonas wasn't shy about taking risks this year with an embellished jacket to complete his all-black ensemble. 

Photo by Steve Granitz/WireImage)

Singer Vaja looks like she's about to take flight with her long flowy, metallic cape. 

(Photo by John Shearer/WireImage)

Heidi Klum showed off her incredibly toned legs in a short, metallic minidress and strappy platform heels to match!

(Photo by John Shearer/WireImage)

Faith Hill looked incredible in a sexy red Zuhair Murad dress with a high slit that flaunted her fit physique. She completed the look with red Stella Luna shoes, Cartier jewelry and a Judith Leiber clutch.

(Photo by Lester Cohen/WireImage)

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Tim McGraw brought some country class to the GRAMMYs in a Brioni tux.

(Photo by Jon Kopaloff/FilmMagic)

LOS ANGELES, CA - FEBRUARY 12: Recording artist Maren Morris attends The 59th GRAMMY Awards at STAPLES Center on February 12, 2017 in Los Angeles, California. (Photo by John Shearer/WireImage)
LOS ANGELES, CA - FEBRUARY 12: Singer Saint Heart attends The 59th GRAMMY Awards at STAPLES Center on February 12, 2017 in Los Angeles, California. (Photo by John Shearer/WireImage)
Kaya Jones arrives for the 59th Grammy Awards pre-telecast on February 12, 2017, in Los Angeles, California. / AFP / Mark RALSTON (Photo credit should read MARK RALSTON/AFP/Getty Images)
LOS ANGELES, CA - FEBRUARY 12: Recording artist Jason Derulo attends The 59th GRAMMY Awards at STAPLES Center on February 12, 2017 in Los Angeles, California. (Photo by John Shearer/WireImage)
LOS ANGELES, CA - FEBRUARY 12: Designer Betsey Johnson and musician John Cale attend The 59th GRAMMY Awards at STAPLES Center on February 12, 2017 in Los Angeles, California. (Photo by Frazer Harrison/Getty Images)
LOS ANGELES, CA - FEBRUARY 12: Actor Laverne Cox attends The 59th GRAMMY Awards at STAPLES Center on February 12, 2017 in Los Angeles, California. (Photo by Lester Cohen/WireImage)
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LOS ANGELES, CA - FEBRUARY 12: Recording artist French Montana attends The 59th GRAMMY Awards at STAPLES Center on February 12, 2017 in Los Angeles, California. (Photo by Steve Granitz/WireImage)
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LOS ANGELES, CA - FEBRUARY 12: Actor Taraji P. Henson attends The 59th GRAMMY Awards at STAPLES Center on February 12, 2017 in Los Angeles, California. (Photo by John Shearer/WireImage)
Dram arrives for the 59th Grammy Awards on February 12, 2017, in Los Angeles, California. / AFP / Mark RALSTON (Photo credit should read MARK RALSTON/AFP/Getty Images)
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