It's Musicals Week, and Tess Daly and Claudia Winkleman host as the six remaining couples take to the dance floor with routines inspired by musicals. From December 2018.

These musical numbers in the "Mamma Mia!" movies will keep you coming back again and again. Our countdown includes "SOS," "I Have a Dream," "Mamma Mia," and more! What's YOUR favorite "Mamma Mia!" song? Let us know in the comments!