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.

After the stars performed their routines, which recalled iconic dances from previous seasons, four stars earned perfect scores: "The Secret Lives of Mormon Wives," star Whitney Leavitt; wildlife conservationist Robert Irwin; TV personality Alix Earle; and reality TV star Dylan Efron.

Last night's episode of 'Dancing with the Stars' got emotional as they celebrated their 20th anniversary. How did Floridian Alix Earle do?

"Dancing with the Stars" judge Carrie Ann Inaba admits she's tougher on female contestants than men, sparking fan theories about her judging style and criticism.

Fans were thrilled to see Bergeron back on the show, splitting duties between being a co-host and a judge on the panel. Bergeron didn't let it get to his head and took the opportunity to celebrate the acclaimed dancing series, as well as get on a soapbox about how the latest episodes prove that this series needs more screen time a week.

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.

The star with the lowest combined judges’ score and viewer votes was eliminated at the end of the episode.

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

Dancing with the Stars on Tuesday threw the mother of all reunions to celebrate 20 years on ABC.

The late Crocodile Hunter’s hunky, grown-up son, Robert Irwin, has gotten super close with sexy pro dancer Hailey Bills after they hit it off on Dancing With the Stars, but insiders say loved ones fear the 21-year-old Aussie’s taking his eyes off the prize and setting himself up for a heartbreaking fall.