Britain's Got Talent Stavros Flatley star Lagi Demetriou's life since show and iconic audition 16 years ago Lagi Demetriou shot to fame on Britain's Got Talent in 2009 as part of comedy act Stavros Flatley Lagi Demetriou and his dad, Demetri, were fan favourites on Britain's Got Talent as Stavros Flatley (Image: Ken McKay/REX/Shutterstock ) Britain's Got Talent has been the launchpad for many stars, including the unforgettable father-son act, Stavros Flatley. Fans will recall their memorable first audition as if it were yesterday, but it actually took place 16 years ago in 2009. Lagi Demetriou, who gained fame on…