Calling all Strictly fact fans - all you need to know about the Semi-final!

A big week on Strictly, of that there's no doubt. It's the semi-final with five couples remaining, but there'll be a DOUBLE elimination this weekend with only the top three couples making it to the grand final in Blackpool. All the couples will also have to dance two individual dances for the first time this week, so we'll really see who's keeping up as everything ramps up towards to marathon that is the final.

In case you didn't know, you can see what the couples dances and song choices are at the Week 11 page.

Yet again, we've got some song choices that have been used on Strictly before:

  • Alex & James are dancing their waltz to "(You Make Me Feel Like) A Natural Woman" which was previously used in series 4 by Nicholas Owen & Nicole Cutler (and they were voted out of the competition on it too).
  • For their Argentine Tango, Holly & Artem will be dancing to "Por Una Cabeza" which was another song used by Nicole Cutler, but this time for her ballroom tango with Diarmuid Gavin in series 2, as well as by Tom Chambers & Camilla Dallerup for their Argentine Tango in the semi final of series 6.
  • Another song used twice previously is "Malguena", this time for Chelsee & Pasha's paso doble, but we've seen it before from Aled Jones & Lilia Kopylova in the semi-final of series 2 (and saw them leave the competition that week as well), and also Natalie Cassidy & Vincent Simone in series 7.
  • And finally, can anyone forget that fateful week that saw Matt Di Angelo & Flavia Cacace dance their samba to "Blame It On The Boogie" in series 7? Matt had already forgotten the routine of the foxtrot, and although tried to pick himself up and dust himself off, he forgot part of the samba too. Jason & Kristina will dance their samba to this same song, so we just have to hope history doesn't repeat itself on this dance.

So how are the couples matching up against each other at this stage of the competition? Well if you look at the statistics, the top five couples are the five remaining couples. Harry & Aliona rank highest with an average score of 33.6 points and seven 10s, with Chelsee & Pasha and Jason & Kirstina both averaging 33.5 points and four and two tens respectively. Holly & Artem aren't far behind with 32.4 points and two 10s, but Alex & James a little way back with an average of 29.9 and yet to score a 10.

Looking at the professionals left in the competition, James, Artem and Aliona have all made it through to the final before, so maybe that experience will stand them in good stead to make it through, but you could say that Kristina has never made it this far in the competition before and Pasha is the new boy, so perhaps they have more to prove and have that much more determination to get to that grand final.

And what about semi-finals? From series five onwards, we've seen a semi-final dance score four 10s (or five in the case of series 7, when Darcey Bussell was added the judging panel), but NONE of the couples who have scored the perfect score of 40 (or 50) in the semi-final have gone on to become champions.

So that's it for now, Strictly fact fans - make sure you vote for your favourites if you want them to make it to the Blackpool Grand Final!