Dylan Efron’s Emotional “Dancing With the Stars” Tribute to Big Brother Zac — Featuring Their Baby Sister in a Tear-Jerking Moment That Stunned the Audience

It’s all in the family for Dylan Efron.

The reality star and content creator lit up Dancing With the Stars‘ Dedication Night with a contemporary routine that referenced his famous older brother while tributing his little sister, Olivia.

Dylan and his pro partner, Daniella Karagach, came out swirling and sliding to “Rewrite the Stars,” originally sung by Zac Efron and Zendaya in The Greatest Showman.

Dylan dedicated the routine to the Efron boys’ 5-year-old half-sister, Olivia. In a pre-dance video from rehearsal, Dylan explained, “I wasn’t expecting to be a big brother. She’s 5, and I’m 33. But immediately I was inseparable from her. She’s everything to me. I want to show her to live her life with confidence.”

He also explained that he had to sneak in a tribute to Zac, 37, who has “always taken care of me and he did things that were so selfless, I want to be that to Olivia.” Olivia joined Dylan and Karagach in rehearsals, gleefully breaking down her bond with Dylan as a simple matter of, “I just like being with Dylan, he’s my best friend, and I just feel like I’m free with him.”

The Efron siblings started the dance off gracefully, twirling toward the steps into the main floor of the ballroom, which Dylan carried Olivia down in an impressive lift. Dylan and his pro partner then punched up into a high-octane, athletic routine as Olivia went running to safe enclave of side stage. As their routine wound to a close, Olivia ran back, embracing her older brother to thunderous applause.

“The next greatest showman!” judge Bruno Tonioli declared. “And little Olivia, prima ballerina! I’m telling you, very well pointed, but listen — fantastic number. How you managed that lift, you never danced before, it’s incredible. You’re getting better and better.”

Carrie Ann Inaba said that she “felt that story to the bottom of my soul. What I love about that story — Olivia, you are incredible, the message of this performance is incredible, the hope and love you feel for her is infused in every step of this dance.” Derek Hough added snarkily, “Dylan, I hate you. You’re a great guy, you’re in shape, you can dance, and you’re a great brother? Come on man!”

Noting Dylan’s dramatic improvement since week one, Hough continued, “The way you came down that floor on that first pass, I was like, ‘My guy is a dancer!’”

Dylan first announced Olivia’s participation in his Dedication Night routine on Instagram on Sunday.

“Please welcome the newest member of Team DaDy, my lil sister Olivia. She’s quickly become 2nd best dancer on the team and by far the cutest,” he wrote in the caption of a photo of the 5-year-old cuddled in his lap during rehearsal.

Season 34’s Dedication Night saw each contestant bring a loved one on stage to participate in their routine. Earlier in the night, Robert Irwin brought the ballroom to tears with his dance dedicated to his mom, Terri Irwin. After Robert and his pro partner Witney Carson earned a season high of 35, Dylan and Daniella set a new high score of 36 after earning 9s from all four judges.