Host Paddy McGuinness is joined by celebrity investigators Jimmy Carr, Alison Hammond and Amanda Holden. This week’s music star is Tony Hadley.

Paddy McGuinness is joined by celebrity investigators Jimmy Carr, Alison Hammond and Amanda Holden. This week’s music star is Alexandra Burke.

Host Paddy McGuinness is joined by celebrity investigators Jimmy Carr, Alison Hammond and Amanda Holden. This week's music star is Becky Hill.

Jimmy Carr, Alison Hammond and Amanda Holden try to help brothers Haloo and Zanist from Hertfordshire to spot the fake singers and win £10,000. This week's musical guest is the legendary Lulu.

Jimmy Carr, Alison Hammond, Amanda Holden and special guest Claire Richards from Steps help best friends Esslyne and Nkechi to tell the difference between good and bad mystery singers.

Paddy McGuinness hosts as Jimmy Carr, Alison Hammond and Amanda Holden help sisters Dominique and Tahiela from Leeds spot the fake singers. This week’s special guest is Erasure’s Andy Bell.

Paddy McGuinness hosts as the celebrity investigators try to help best friends Tracy and Michelle from Plymouth spot the imposters, with added assistance from Simon Webbe of Blue.

West End star Layton Williams joins the celebrity investigators to help mother and daughter Maryanne and Chloe from Poole to spot the impostors.