Britain's Got Talent has been a launchpad for many stars, with winners like Diversity , Collabro and Paul Potts becoming household names since the show first aired 18 years ago. However, it's not just the winners who find success; Susan Boyle is one of the biggest success stories, winning hearts in 2009 with her unique style and stunning voice, and going on to sell millions of albums worldwide. Some contestants are remembered for their standout acts, such as Ashleigh and her talented dog Pudsey,