Episode 8

West End star Layton Williams joins the celebrity investigators to help mother and daughter Maryanne and Chloe from Poole to spot the impostors, but with a line-up including an air hostess, a cabbie and a bartender, they may have their work cut out.

The last mystery singer standing will reveal if they are a good or a bad singer in a duet with Layton, resulting in either a magical musical moment or a comedy collaboration on the Motown classic Ain’t No Mountain High Enough.

If Maryanne and Chloe correctly identify a good singer, they win £10,000 - but if a bad singer manages to fake it all the way to the end, they steal the money.