Kaitlyn Bristowe brought some magic to the dance floor on '80s Night! The former Bachelorette wowed with her Tango on on Monday night, ending her performance with some epic break dancing. «I know the judges wanted to see a different side, so '80s Kaitlyn is out to play,» Bristowe teased before she and her pro partner, Artem Chigvintsev, danced to Tiffany's «I Think We're Alone Now.» Judges Derek Hough, Bruno Tonioli and Carrie Ann Inaba praised the pair for their dynamic performance. «I did not