Paul won the very first series of BGT back in 2007 after shocking the judges in his first appearnce with a stunning Operatic voice.
Despite going on to enjoy worldwide fame and career that's still going strong, Paul has revealed how he almost missed his audition
"I auditioned on a Saturday, and asking for a day off in retail - absolute nightmare," he said on Good Morning Britain this week.
Paul added how he had phoned up BGT to ask to audition another day but it couldn't be done, almost forcing him to miss the try out.
Fortunately Paul eventually managed to get another colleague to cover for him and the rest, as they say, is history.
After winning the show, Paul’s multi-platinum debut album “One Chance” shot straight to the No.1 spot in the UK and topped the charts around the world.
Since Britain’s Got Talent, Paul has embarked on multiple world tours, has released four studio albums and inspired the hit film “One Chance” about his life, starring James Corden in the lead role.
Having now performed at more than 800 shows across the globe, Paul is now working on a fifth album due out later this year.
Paul said: "The most important thing is it doesn't change you - you have to be you.
"You have to be the person who defines your own success."
Britain's Got Talent starts its tenth series this year.