'Dancing With the Stars' 2017: Season 24 celebrity cast and partners revealed on 'GMA'

— -- The cast of season 24 of the hit reality TV show "Dancing With the Stars" was announced live on "Good Morning America" today.

This season's lineup of stars features decorated Olympic gymnast Simone Biles, legendary figure skater Nancy Kerrigan and "Real Housewives of Beverly Hills" star Erika Jayne, among other celebrities from music, television and sports, who will be hitting the dance floor to battle one another for the mirror ball trophy.

Biles, who will be dancing with Sasha Farber, joins the cast the season after her Olympic teammate Laurie Hernandez took home the trophy last season. Hernandez said winning the mirror ball brought her the "same joy" as winning her Olympic medals. Val Chmerkovskiy, Hernandez's partner last season, is back, teaming up with Fifth Harmony singer Normani Kordei.

The season 24 premiere will be the 400th episode of the hit show, and many fan-favorite pro partners will be returning to compete, including Maksim Chmerkovskiy and Peta Murgatroyd, who welcomed their first child together in January. Veteran dancer Kym Herjavec is back from a hiatus after marrying her former "DWTS" partner Robert Herjavec.

The celebrities and their partners appeared live on "GMA" today.

The new season of “Dancing With the Stars” premieres on Monday, March 20, at at 8 p.m. ET.

Simone Biles with Sasha Farber

The four-time gold medalist will be dancing with Sasha Farber.

Bonner Bolton with Sharna Burgess

The professional bull rider and model will be dancing with Sharna Burgess.

Charo with Keo Motsepe

The "chuchi-chuchi" actress and guitarist will be partnered with Keo Motsepe.

Chris Kattan with Witney Carson

The "Saturday Night Live" veteran will be dancing with Witney Carson.

David Ross with Lindsay Arnold

The two-time World Series champion — and the show's first baseball star — will be partnered with Lindsay Arnold.

Erika Jayne with Gleb Savchenko

The dance club musician and "Real Housewives of Beverly Hills" star will be dancing with Gleb Savchenko.

Heather Morris with Maksim Chmerkovskiy

The "Glee" actress will be partnered with Maksim Chmerkovskiy.

Mr. T with Kym Herjavec

The actor and former professional wrestler will be dancing with Kym Herjavec.

Nancy Kerrigan with Artem Chigvintsev

The former Olympic figure skater will be partnered with Artem Chigvintsev.

Normani Kordei with Valentin Chmerkovskiy

The Fifth Harmony singer will be partnered with Valentin Chmerkovskiy.

Rashad Jennings with Emma Slater

The NFL player will be dancing with Emma Slater.

Nick Viall with Peta Murgatroyd

The Bachelor will be dancing with Peta Murgatroyd.

The new season of "Dancing With the Stars" premieres on Monday, March 20, at at 8 p.m. ET.