The Geordie duo raced down to the judges' desk from backstage to slam the golden buzzer after Boyband's audition in Edinburgh.
Five piece dance group Boyband, who last year made the final of Sky1's Got To Dance, are made up of Corey 18, Mike 18, Dylan 18, Jaih 17 and Mikey 19.
The London students wowed at the auditions with their hip hop, back flipping and breakdance routine to Uptown Funk.
Alesha Dixon told the group: "You were sensational, so confident you brought great energy, it was a fantastic audition."
Amanda Holden commented: "I didn't see it coming, I thought you were absolutely fantastic you are definitely something we're looking for on this show."
David Walliams added: "It was flawless, you all sold it, you're all stars!"
Simon Cowell told the boys: "I've sat in this chair for a long time and I think with you we're seeing the future, I think what you've done together yourselves is exceptional and I've got the best feeling going forward, well done guys."
The Britain's Got Talent 2015 auditions continue next weekend on ITV.
Browse pictures of all of tonight's Britain's Got Talent 2015 contestants right here...