- Alfonso Ribeiro (Self - Host)
- Julianne Hough (Self - Host)
- Derek Hough (Self - Judge)
- Carrie Ann Inaba (Self - Judge)
- Bruno Tonioli (Self - Judge)
Episode: Week 4: Most Memorable Year
Air Date: 2017-04-10
The 10 remaining celebrities will take a stroll down memory lane and celebrate with a dance to a time in their lives that left a lasting impression, as they commemorate their most memorable year.