Strictly Come Dancing spoilers follow.
The BBC is celebrating 100 years of broadcasting this weekend, and Strictly Come Dancing is one of the Beeb's flagship shows getting in on the fun.
As you might expect, Strictly's way of commemorating the anniversary is to have the contestants and professional partners dance to songs that are either iconic theme tunes or otherwise related to various BBC staples.
Ellie Simmons and Nikita Kuzmin will be dancing the Paso Doble to The Apprentice theme tune, Sergei Prokofiev's 'Montagues and Capulets'. Ellie Taylor and Johannes Radebe will be dancing the Tango to the Casualty theme.
Fleur East and Vito Coppola will be representing the Eurovision Song Contest with a Jive to ABBA's 'Waterloo', which saw the Swedish supergroup win the competition when it was held in Brighton back in 1974.
We've got two Charlestons this week, with Helen Skelton and Gorka Marquez performing the Blue Peter theme, while Jayde Adams and Karen Hauer will be dancing to Victoria Wood's 'The Ballad of Barry and Freda (Let's Do It)'.
To represent the original Come Dancing, Kym Marsh and Graziano Di Prima will be doing the Quickstep to Sweet's 'Ballroom Blitz'.
Molly Rainford and Carlos Gu's Couples' Choice dance is to the Grange Hill theme, while Hamza Yassin and Jowitza Przystal will be giving us our second Quickstep of the night, with Imagine Dragons' track 'On Top of the World' representing the BBC's nature programming.
Of course, James Bye and Amy Dowden are performing a foxtrot to EastEnders' 'Julia's Theme' and its main theme, while Tony Adams and Katya Jones are doing the Cha Cha to the legendary Grandstand theme.
Tyler West and Dianne Buswell will Tango to the current version of the Doctor Who theme by Segun Akinola, while Will Mellor and Nancy Xu will do a Viennese Waltz to Line of Duty's end credits music.
Strictly Come Dancing continues on BBC One on Saturday (October 22), while spin-off Stricly: It Takes Two airs weekdays on BBC Two. Both shows also stream on BBC iPlayer.