Dylan Efron shirtless in Dancing With The Stars 34-11 "Finale"

Dylan Efron shirtless in Dancing With The Stars 34-08 "Rock & Roll Hall Of Fame Night"

Robert Irwin shirtless with Dylan Efron in Dancing With The Stars 34-03 "TikTok Week"

Robert Irwin and Dylan Efron in Dancing With The Stars 34-02 "One-Hit Wonders Night"

Dylan Efron shirtless with Robert Irwin on Dancing With The Stars 34-01 "Premiere"

Dylan Efron shirtless in "No Shirt, No Problem" advertisement

Dylan Efron and Tom Sandoval shirtless in The Traitors (US) 3-10 "The Power Of The Seer"

Dylan Efron and Sam Asghari shirtless in The Traitors (US) 3-09 "A Silent Assassin"

Dylan Efron shirtless in The Traitors (US) 3-07 "Til Death Do Us Part"

Dylan Efron and Tom Sandoval shirtless in The Traitors (US) 3-03 "Nail In A Coffin"

Dylan Efron shirtless in The Traitors (US) 3-02 "Revenge Is a Dish Best Served Cold"

Zac Efron and Dylan Efron shirtless on Instagram

Zac Efron and Dylan Efron shirtless in Off The Grid "Mammoth Lakes, California"

Zac Efron and Dylan Efron shirtless in Off The Grid "We Spent 96 Hours In The Desert"

Zac Efron and Dylan Efron shirtless in Tested Tough