India, Nov. 26 -- Bindi Sue Irwin revealed the moment she and her family learned that her brother, Robert Irwin, won the Len Goodman Mirrorball Trophy for Dancing with the Stars Season 34. Robert won the trophy alongside partner Witney Carson.

Bindi shared a video on Instagram, showing her, her mother Terri Irwin, her husband Chandler Powell and others rejoicing after learning Robert had won the trophy. Bindi, too, won Dancing with the Stars in 2015 when she was 17.

A text overlay on the video reads, "The moment we found out that Robert and Witney WON Dancing With The Stars". The caption reads, "CONGRATULATIONS @robertirwinphotography AND @witneycarson !!!! Woohoo! So well deserved."

Bindi congratulated her brother in a couple of other...