From celebrities' dazzling, barely-there outfits to their iconic performances, MTV's 40th annual 2021 Video Music Awards proved to be a can't-miss spectacle.
Aside from beloved stars taking home awards for their hard work, an award show wouldn't be complete without couples packing on the PDA, A-list stars sharing silly moments behind-the-scenes and maybe even a scuffle here and there.
Justin Bieber and Olivia Rodrigo may have been the stars of the Awards show this year — with the "Holy" singer taking home two Moonperson statuettes and the "Good 4 U" songstress winning three — but it was Machine Gun Kelly, Travis Barker and their respective girlfriends, Megan Fox and Kourtney Kardashian, who stole the show.
The KUWTK alum and Blink-182 drummer not only made their red carpet debut at the Sunday, September 12, VMAs, but Kardashian even gushed over the artist while introducing his epic performance with MGK, calling Barker "hot."
SEE THE STAR STUDDED RED CARPET ARRIVALS AT THE 2021 MTV VIDEO MUSIC AWARDS
As for Fox and the "My Ex's Best Friend" rocker, they caused jaws to drop on multiple occasions. For starters, the brunette babe stunned in a completely see-through dress that showed off her bedazzled G-string while the rapper donned a glittery red two piece suit and pearls on his face.
Fox then sent fans into a frenzy when she called her and Kardashian's men their "future baby daddies" before welcoming them to the stage.
Meanwhile, the New Girl alum's man caused quite the ruckus after a fight broke out between him and Conor McGregor on the red carpet. After the altercation — which reportedly occurred because Kelly's team didn't let the MMA fighter take a picture with the star — McGregor insisted "absolutely nothing" happened, saying he "certainly" doesn't "fight little vanilla boy rappers."
When MGK was asked about the confrontation by a reporter, he let out an exasperated groan and pushed the microphone out of his face before grabbing Fox's hand and walking off.
Kelly and McGregor's scuffle wasn't the only memorable thing to take place on the red carpet: Nick Cannon also caused a scene when he saw Ashanti stun in her sexy black Michael Costello dress. The Masked Singer host was so blown away by Ashanti's beauty that he decided to jokingly propose to the singer.
Scroll through to see most memorable moments from the 2021 VMAs.
Kourtney Kardashian & Megan Fox
The power duo stunned in Olivier Theyskens and Mugler dresses, respectively.
Hailey & Justin Bieber
Hailey Bieber showed her support for her hubby, who won Best Pop Song and Artist of the Year.
Paris Hilton & Kim Petras
Paris Hilton rolled up to the Awards show at the Barclays Center in a pastel pink Mini Cooper with singer Kim Petras.
Lil Nas X
Lil Nas X posed with his Video of the Year award for his tune, "Montero (Call Me by Your Name)."
Shawn Mendes
Shawn Mendes' good looks were on full display while he flashed his charming smile on the red carpet for fans.
Travis Scott & Billie Eilish
Matching in all-black ensembles, Travis Scott and Billie Eilish were seen sharing a laugh in the audience.
Olivia Rodrigo
Rodrigo had herself a succesful night. Apart from looking fabulous in her hot pink vintage Atelier Versace gown wrapped in fuchsia tulle, the teen star took home awards for Song of the Year, Best New Artist and Push Performance of the Year.
Nick Cannon & Ashanti
Cannon comically got down on one knee and kissed Ashanti's hand as she flaunted her bombshell body in a bondage-inspired dress.
Avril Lavigne & Mod Sun
Avril Lavigne and Mod Sun packed on the PDA while channeling a 2000s punk rock look.
Machine Gun Kelly
Kelly showed his award for Best Alternative for "My Ex's Best Friend" some love.
Dixie & Charli D'Amelio
TikTok stars and sisters Dixie and Charli D'Amelio attended the celeb-filled Awards show with mom Heidi and dad Marc.
Shawn Mendes & Lil Nas X
Mendes, who rocked an all-white number, and Lil Nas X — who donned a light purple outfit that doubled as a gown and a suit — posed together for the camera.
Normani & Teyana Taylor
Normani and Teyana Taylor showed off their fit figures in striking silver outfits. Taylor joined Normani on stage for her performance of “Wild Side,” during which the "Motivation" songstress did a steamy dance on Taylor, who was strapped to a human-shaped bondage board. The sexual performance was a nod to Janet Jackson, who did a similar naughty dance session in 2002 during her "Would You Mind" performance.
Billy Porter & Rita Ora
Billy Porter and Rita Ora shared a sweet moment on the red carpet, with the two embracing each other before they were both set to present at the show.
Conor McGregor & Wyclef Jean
McGregor may not be a fan of MGK anymore, but he seemed more than happy to be snapping a pic with Wyclef Jean.
Lance Bass, Nick Lachey & AJ McLean
Former boy band members Lance Bass, Nick Lachey and AJ McLean came together to present at the star-studded event.
