Olivia Jade, Jimmie Allen voted off 'DWTS'; Suni Lee wows as blonde after last week's viral mishap

Olympic gymnast Suni Lee ran off the "Dancing With the Stars" stage just avoiding vomiting on the dance floor on national TV last week. Tonight, she bounced back in miracle style.  

Lee stunned on Monday with a new blonde hairdo, a recharged infectious spirit, and killer dance moves. The gold medalist needed the boost with the reality dance competition hosting an intense double-elimination to the music of Janet Jackson.

Tonight, the dancers were either going home or to next week's semifinals. 

This "Dancing With the Stars" season has been so unpredictable that even the best dancers, including Lee, have been on the verge of elimination. "I'm so nervous, anyone can go home," said host Tyra Banks, kicking off the show.

In the end, social influencer Olivia Jade and country singer Jimmie Allen were eliminated. Here's what else went down on the dance floor: 

Suni Lee is a 'DWTS' warrior:Makes gutsy return after dance floor stomach illness

Suni Lee's live TV horrors are behind her

During her pre-dance video introduction, Lee, 18, recalled last week's near-disaster as she sprinted off the floor following her paso doble, narrowly avoiding vomiting on the dance floor due to a stomach virus. 

"After the dance, I had to run to the bathroom because I had to throw up," said Lee. "I was not about to throw up on national TV."

"Last week was rough," she added. To make matters worse, Lee shared tweets aimed at her from social media trolls. "I let them get to me, no one believes I will do it," Lee said, before vowing, "No one is going to take the fun away."

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Not even close, Lee emerged onstage with a new look — blonde, wavy hair and a beaming smile. Her samba to Jackson's "All For You" with partner Sasha Farber under pink-and-blue neon lights was transformative.

"Get this girl a hair campaign immediately," barked judge Derek Hough. "New hair, new confidence."

The judges responded with straight 10s across the board, the first perfect score for Lee.

"This is the time to step it up," said Lee afterward. She easily advanced to next week's semifinals. 

The partner tension was off the hook

With the semifinals a double elimination away, the couples were feeling the tension.

The pre-taped videos showed surprising moments of tension between the celeb dancers and their partners. No drama "Office" star Melora Hardin and pro partner Artem Chigvintsev were seen bickering but ended the video in a tearful hug.

The couple stormed out and danced a paso doble that earned perfect scores from judges.

Amanda Kloots' pre-dance video showed she was butting heads with her partner Alan Bersten. "We push each other’s buttons," a tense Kloots admitted in the video.

The couple then performed a jazz dance that earned another perfect score from the judges.

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JoJo Siwa, Olivia Jade battle — and it's iconic

With each couple performing a second time in a dance-off, there was no bigger face-off than JoJo Siwa, 18, and pro dancer Jenna Johnson, 22, facing off against Olivia Jade, 22, and partner Val Chmerkovskiy, 35.

The battle between the two young celeb dancers was even more fascinating knowing their respective pro partners, Johnson and Chmerkovskiy, are married. 

Johnson still promised to take no prisoners even against her husband. "But I might get distracted, his bum is so good," she said.

The rumba to Jackson's "That's the Way Love Goes" was everything. Inaba called it "the dance-offs of dance-offs." But ultimately declared Siwa and Johnson the victors, allowing them two bonus points.

Host Banks gave a parting consolation vote. "I'm still voting for Val's booty," she said. "Because it's hot."

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So who was eliminated? 

The first casualty was a major surprise. Jade and Chmerkovskiy were unceremoniously sent off, based on the lowest judges' scores and viewer votes. Even Banks was surprised by the sudden fall of the social influencer with a talent for dancing. 

"This is crazy. You guys have brought so much to the competition," said Banks. "Olivia danced her butt off, you got some pro skills."

The couple, anti-climatically, were ushered off the dance floor for the main event.

The judges were forced to choose between the bottom two — Melora Hardin and country singer Jimmie Allen, who didn't necessarily wow judges with his cha cha earlier in the night.

Inaba was in tears delivering the deciding vote against Allen: "You embody what this show is about in so many ways," she sobbed. 

"Dancing With Stars" semifinals begin next Monday at 7 p.m. ET/PT.