The Transformers actress started off saying, "New York, I need you to get super extra loud for our future baby daddies" followed by the Keeping Up With The Kardashians star who welcomed them to the stage.
Fox previously arrived to the red carpet in style with the "Bloody Valentine" singer. She dazzled photographers and fans alike in her sheer, nearly-nude gown paired with matching, sparkly undergarments, while her twin flame sported a snazzy red two piece suit.
Meanwhile, the reality star and her Blink-182 drummer beau matched with a punk-inspired ensemble. Kardashian was a stunner in her black leather, off the shoulder, lace-up front corset, while Barker wore a black blazer and pants bedazzled with silver spikes on the shoulders and knees.
Before their performance, there seemed to be a few hiccups behind the scenes. An insider told Us that their showtime was delayed, saying "Machine Gun Kelly buried himself in a grave as they were setting up to perform. He then burst out of the dirt in his grave, ran off stage and said something to Travis," They went on to explain that "He was throwing elbows and seemed very upset before running backstage. The crew came and rolled off MGK’s grave and Travis’ huge drum off the stage."
But that wasn't the "Forget You" artist's first bit of drama that night. As OK! previously reported, he got into a scuffle with fighter Conor McGregor on the red carpet after the Irish boxer reportedly threw a drink in his face. "They scuffled then it settled down and Conor went for him again," the insider spilled to the outlet.