Dancing with the Stars Season 21 Week 7 Halloween. Team Who You Gonna Call danced to the song Ghostbusters by Ray Parker Jr, form the movie Ghostbusters. <br /> <br />The team members were Bindi Irwin and Derek Hough, Alexa Penavega and Mark Ballas, Carlos Penavega and Witney Carson, Alek Skarlatos and Lindsay Arnold
