Semi-final time, which means each couple has to perform not one but two dances. Bring it on!
Jamie and Karen: Salsa to Last Dance by Donna Summer
This looks surprisingly slow - oh wait, now the music's got going and everything's sped up. Let the party begin!
Ranvir and Giovanni: Waltz to Un Giorni Per Noi by Josh Groban
Wow - so beautiful and elegant, if it did seem a little halting at time. And a complete mood swing compared to the previous dance!
Bill and Oti: Charleston to (Won't You Come Home) Bill Bailey by Ottilie Patterson with Chris Barber
Behind the door of number 10... spontaneous comedic dancing! Y'know, it would explain so much if this was really what goes on inside number 10...
Maisie and Gorka: Couple's Choice: Street/Commercial to Gettin' Jiggy Wit It by Will Smith
We interrupt this game of basketball for an impromptu dance. The final score: 30 points!
HRVY and Janette: Rumba to Only You by Kylie Minogue and James Corden
Dancing inside a snowglobe? Very pretty and Christmassy.
Jamie and Karen: Quickstep to Thank God I'm a Country Boy by John Denver
Welcome to the Strictly farm - watch you don't fall off the corn on the cob?
Ranvir and Giovanni: Jive to Candyman by Christina Aguilera
A ship inside a giant sweet shop? What.
Bill and Oti: Tango to Enter Sandman by Metallica
For a tango we need... ALL THE METAL! Air guitar! And fire, because METAL!
(watch out after the dance for a bonus clip of the band - as Claudia said: "that made Dave Arch's day")
Maisie and Gorka: Viennese Waltz to A Thousand Years by Christina Perri
That looked a bit awkward at first with the guitar prop - it got much better once they got rid of it!
HRVY and Janette: Charleston to Another Day of Sun by La La Land Cast
At Strictly we only have one strength of coffee: ALL THE CAFFEINE. Side-effects include getting 30 points from the judges.
Claudia and Jamie: "Can you describe your next dance in three words?" "Quick... and steppy"
Claudia: "Think of it as Countryfile: the musical"
Motsi: "What did I just watch?"
Craig: "How come Shirley doesn't get booed?"