'Dancing with The Stars' Finale 2015 Recap Video (ABC): Who Won DWTS Season 20? The Winner Is...

May 19, 2015 02:21 AM EDT

Update: The Winner of the Mirror Ball Trophy Is Rumer Willis!

Dancing with Stars season 20 is ending in a two-part finale, starting tonight at 8/7c. Contestants are down to just three finalists - actress Rumer Willis, U.S. Army veteran Noah Galloway, and R5 band member Riker Lynch. All contestants will perform one ballroom and one freestyle routine. The DWTS's mirror ball winner will be announced on Tuesday.

In part 2 of the DWTS's finale, last season Champion Alfonso Ribeiro and runner-up Sadie Robertson will be dancing together. Sadie Robertson posted on her Facebook page, "Alfonso & I will be dancing together on the Dancing with the Stars finale on Tuesday!! Can't wait to get back on the dance floor! What song should we dance to??"

According to ABC News, Galloway will perform the Argentine tango. Meanwhile, Willis will dance the foxtrot. Fellow contestant Lynch will do the paso doble. The competition will kick off this evening, Monday.

The previous episode saw the elimination of Olympian Nastia Liukin. Even though Willis made it to the top of the leader board, Judge Len Goodman was quick to point that outcome is still uncertain.

"It's anyone's to win and anyone's to lose now," Goodman said, according to USA Today.

Willis is currently nursing a bruised rib sustained during training with partner Val Chermkovskiy. On Saturday, ET Online released a video showing the duo having difficulties practicing for the finale.

During rehearsal, Willis had to pause due to the pain. Chermkovskiy admonishes her to see a doctor, but Willis stubbornly insists she needs a few seconds to rest. The pro dancer proceeds to massage Willis' strained neck and back muscles.

"I just don't want to let you down," Willis says nearly in tears. Chermkovskiy kisses her on the top of the head for reassurance.

Special Performance with Noah Galloway and Amy Purdy  

Near the conclusion of the finale, Galloway will dance in a special performance with former DWTS contestant Amy Purdy. Both dancers competed with artificial limbs. Galloway lost a leg and an arm in an explosion in Iraq. Purdy had both legs amputated after nearly losing her life to meningitis.

DWTS Season 20 finale is available through live streaming on abc.go.com. If you miss any of the performances, you can watch them on ABC's official website.