The dancers are mixing it up this week, combining two styles in one peformance. Here's what they're doing and who they're doing it to...

Nicky and Karen – American smooth-foxtrot to Troublemaker by Olly Murs

Dani and Vincent – Charleston-quickstep to Happy Feet by Paul Wightman

Denise and James – quickstep-jive to Reet Petite by Jackie Wilson

Lisa and Robin – tango-cha-cha-cha to Voulez Vous by Abba

Kimberley and Pasha – cha-cha-cha-tango to It's Raining Men by The Weather Girls

Louis and Flavia – rumba-tango to With or Without You by U2