Week 6 dances and songs

It's Hallowe'en this weekend on Strictly, and the week six songs and dances have been revealed.  I've updated the Week 6 results page with the details and I've also updated the Songs page, but to help you see which of this weeks songs have been used before, here's an extract with them all in:

Couple Dance Song Series
Matt & AlionaArgentine TangoBat Out Of HellSeries 8, Week 5
Anastacia & BrendanJiveBat Out Of HellSeries 14, Week 6
Claudia & AJAmerican SmoothBlack MagicSeries 14, Week 6
Robert & OksanaPaso dobleBorn This WaySeries 14, Week 6
Sarah & BrendanPaso dobleBring Me To LifeSeries 2, Week 4
Alex & JamesPaso dobleBring Me To LifeSeries 9, Week 5
Greg & NatalieRumbaBring Me To LifeSeries 14, Week 6
Alesha & MatthewCha cha chaCrazy In LoveSeries 5, Week 8
Alesha & MatthewCha cha chaCrazy In LoveSeries 5, Week 12
Kimberley & PashaShow danceCrazy In LoveSeries 10, Week 12
Louise & KevinCharlestonCrazy In LoveSeries 14, Week 6
Darren & LiliaPaso dobleDon't Let Me Be MisunderstoodSeries 3, Week 4
Darren & LiliaPaso dobleDon't Let Me Be MisunderstoodSeries 3, Week 10
Matt & AlionaPaso dobleDon't Let Me Be MisunderstoodSeries 8, Week 12
Daisy & AljažPaso dobleDon't Let Me Be MisunderstoodSeries 14, Week 6
Ore & JoanneCharlestonI Want CandySeries 14, Week 6
Bill & KarenCha cha cha Love Potion No. 9 Series 3, Week 1
Chelsee & PashaTango Love Potion No. 9 Series 9, Week 5
Ed & KatyaCha cha chaLove Potion No. 9Series 14, Week 6
Laura & GiovanniTangoPaint It BlackSeries 14, Week 6
Danny & OtiFoxtrotTake Me To ChurchSeries 14, Week 6