Sean Sheehan - Britain's Got Talent 2010 - Semi-final 1

Kevin Cruise - Britain's Got Talent 2010 - Semi-final 1

Britain's Got Talent 2015: Mitch & Cally The Wonderdog have a pop at the world record (Semi-Final 1)

Britain's Got Talent 2015: Lorraine Bowen's singing is out of this world (Semi-Final 1)

Britain's Got Talent 2015: Impersonator Andrew Fleming's not bitter (Semi-Final 1)

Stevie Starr - Britain's Got Talent 2010 - Semi-final 1

Diversity - Britain's Got Talent 2010 - Semi-final 1

Threebee - Britain's Got Talent 2010 - Semi-final 1

Josh Barry - Britain's Got Talent 2010 - Semi-final 1

Alesia Vazmitsel - Britain's Got Talent 2010 - Semi-final 5

The Fusion - Britain's Got Talent 2010 - Semi-final 4

Team Shaolin - Britain's Got Talent 2010 - Semi-final 4

Taboo - Britain's Got Talent 2010 - Semi-final 2

Britain's Got Talent 2015: Watch the nail-biting result of the first semi-final (Semi-Final 1)

Britain's Got Talent 2015: Welsh choir Côr Glanaethwy raise the roof (Semi-Final 1)

Britain's Got Talent 2015: Skating siblings Billy and Emily England are in a spin (Semi-Final 1)