Episode 5 is a trip back to the Christmas number ones of the 1990s, the decade of Girl Power and power ballads.

Cliff Richard was still around, we said goodbye to a rock icon, Take That were beaten by a bloke in a rubber suit, and the Spice Girls repeated the Beatles’ record.

Novelty was back in the form of Mr Blobby, Teletubbies and South Park’s Chef.

Plus it was the decade that saw festive favourites by Mariah Carey and East 17. But that was about it. And they were in the same year!

Full Christmas number ones (look away if you don’t want ‘spoilers’!):

• 1990: Cliff Richard – ‘Saviour’s Day’
• 1991: Queen – ‘Bohemian Rhapsody/These Are the Days of Our Lives’
• 1992: Whitney Houston – ‘I Will Always Love You’
• 1993: Mr Blobby – ‘Mr Blobby’
• 1994: East 17 – ‘Stay Another Day’
• 1995: Michael Jackson – ‘Earth Song’
• 1996: Spice Girls – ‘2 Become 1’
• 1997: Spice Girls – ‘Too Much’
• 1998: Spice Girls – ‘Goodbye’
• 1999: Westlife – ‘I Have a Dream/Seasons in the Sun’