"Dancing With The Stars" welcomed another star in Season 34 when Zac Efron made a surprise appearance to support brother ...

Zac Efron was spotted in the 'Dancing With the Stars' audience as Dylan Efron competed for a spot in the season 34 finale ...

Actor Zac Efron stopped by "Dancing with the Stars" to support his brother Dylan Efron, who is competing on season 34.

Kaitlyn Bristowe opened up about seeing Zac Efron in the 'Dancing With the Stars' ballroom for the season 34 semi-finals ...

Zac Efron cheered on his brother Dylan during the semi-finals of 'Dancing with the Stars' on Nov. 18. Zac's appearance in the ...

Zac Efron finally made his “Dancing With the Stars” appearance during Prince Night, just in time to support his younger ...

Zac Efron finally visited "Dancing With the Stars" to support his brother Dylan — and it seems like he wasn't exactly sure ...

Zac Efron was the first Hollywood star in his family, but his younger brother, Dylan Efron, has followed in his footsteps, ...

"The Iron Claw" star made his first cameo in the live audience, rooting for his younger sibling on Prince Night.

Zac Efron was a supportive brother this week as he made an unexpected appearance on Dancing With The Stars, and fans noticed ...

Zac Efron finally made an appearance on “Dancing With the Stars” in support of his brother Dylan Efron during the semifinals.

Zac Efron made a long-awaited appearance in the Dancing With the Stars season 34 semifinals audience to support his brother, ...