Lauren Alaina

The country singer and her dance partner, Gleb Savchenko, performed twice -- as did all six remaining contestants -- during a week of competition devoted to the music of boy bands and girl groups.

Alaina dedicated her Monday night (Oct. 21) 'Dancing With the Stars' performance to her late stepfather, dancing to a brand-new song she wrote in his honor.

This year's cast include pop stars, political spokespeople and athletes.

Our hearts are still breaking for these former couples.

Gwyneth Paltrow, Danielle Fishel and Lea Michele are just a few stars who celebrated engagements this year.