BGT 2019 applications are now open! Apply now at: http://itv.com/britainsgottalent
Back in 2014, Bars & Melody first auditioned for Britain's Got Talent. Little did they know the journey it would take them on when Simon Cowell hit his Golden Buzzer. Take a look back at BGT's most watched Audition of all time in this Unforgettable Audition.
See more from Britain's Got Talent at http://itv.com/talent