Zac Efron’s reaction to brother’s DWTS score goes viral as fans work out what he said

Any fans of Dancing with the Stars will no doubt know all about Zac Efron's hilarious mishap caught on camera during the semi-finals.

Now, the 38-year-old High School Musical star isn't a contestant on the hit ABC show - his younger brother, 33-year-old Dylan, is, and he's been doing a pretty ace job since the TV series kicked off back in September.

Yesterday's (18 November) viewing saw Dylan and his pro partner Daniella Karagach receive their scores from the judges for their first dance - a 27 out of 30 for their Tango to Prince's 'I Would Die 4 U', with each judge awarding the prancing pair a nine.

Zac and his mum were in the audience during the scoring, with the camera panning to him as he asked her a question, which has since sent the internet into a spiral.

Now, there are a couple of theories as to what Zac was asking his mum, with some DWTS fans reckoning he asked if those were good scores, while others think he may have been asking if that was their highest score.

Regardless, the Hollywood A-lister looked shocked at his mum's reaction and appeared to say, 'Oh, okay', while clapping enthusiastically.

Their mum could then be seen laughing alongside their dad.

Either way, it's clear that Zac was super proud of his younger brother, as at the end of the episode, it was revealed that Dylan is going to the finale next week!

People have since rushed to X to share their reactions to the hilarious clip, with one user seemingly quoting Zac: "'Are those good scores?' Oh Zac has no idea where he is."

A second chimed: "Turns out, after a full investigation courtesy of my elite investigative team, the line was almost definitely 'is that their high score?' about 98% confirmed."

"Probably thought the scale went to 100 lmaoooo," quipped a third, while a fourth pointed out: "He asked that with his whole chest too omg."

A fifth theorised: "He’s never seen a single second of this show, oh man."

Someone else gushed: "He's smiling through the confusion, bless his heart."

And a final X user praised: "Zac Efron at DWTS is something I didn’t know I needed!"

Joining Dylan in the finale are celebrity guests: Robert Irwin, Alix Earle, Elaine Hendrix, and Jordan Chiles.

The eagerly anticipated Dancing with the Stars finale will take place next Tuesday (25 November).