Celebrity investigators Jimmy Carr, Alison Hammond and Amanda Holden try to help a team of two players tell the difference between the good and bad mystery singers, without ever hearing them sing a note. The one they think is genuine then reveals if they are a good or a bad singer in a duet with special guest Alexandra Burke. If the players correctly identify a good singer, they win the money, but if a bad singer manages to fake it all the way to the end, they steal the £10,000!
This week's players are best friends Charlie and Dexter from London, and the bad singers hoping to fool them include a removal man, a speech therapist and an estate agent. The show closes with Alexandra belting out a Whitney classic, but is the mystery singer good or bad?