The Week 9, Nov. 11 episode of “DWTS” went all out for its 20th Birthday Party theme night, bringing back familiar faces like original host Tom Bergeron, who served as a guest judge, as well as six Season 1 pros for a special opening number choreographed by current judge Derek Hough.

Former host Tom Bergeron made his long-awaited return to the ballroom on Tuesday night as a guest judge, while several former faces of the show were in the ballroom.

As 'Dancing With the Stars' marks 20 years on air, Robert Irwin gets a call from Prince William before sparks fly during his dance with Xochitl Gomez, a past champ.

"Dancing with the Stars" marked 20 years of toe-tapping fun last night with an elimination, a fan favorite judge back in his seat and a royal cameo.

A Tony winner, several Olympians, Super Bowl champions and Bachelorettes are just a few of the stars who have won the coveted mirrorball trophy throughout the show’s 20-year history.

Robert Irwin is staying tight-lipped about his dating life. TMZ cameras caught the 21-year-old wildlife conservationist heading into a Dancing with the Stars training session in Los Angeles, where he was asked about actress Xochitl Gomez,

While 'Dancing With the Stars' celebrated 20 years, there was still a heartbreaking elimination at the end of the night.

Bobby Bones, the Dancing with the Stars Season 27 champ, just dropped a bombshell: he sent his shiny Mirrorball trophy back to ABC. Yep, the whole thing.

After another brutal elimination during the 20th Birthday Party Night, season 34 of 'DWTS' is nearing the semi-finals with Prince’s greatest hits