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

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

Dylan Efron reacts to his brother, Zac Efron, making a surprise appearance in the 'Dancing With the Stars' ballroom ...

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

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

Zac Efron's 'DWTS' appearance had fans debating what he said as he cheered for brother Dylan and sat with sister Olivia in ...

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

Dylan Efron shared with E! News how special it was for his older brother Zac Efron to make a surprise appearance in the ...

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 has finally entered the Dancing With the Stars chat, publicly supporting his younger brother, Dylan Efron, in the ...

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

Zac Efron attended the ‘Dancing With the Stars’ season 34 semifinals to watch brother Dylan Efron, and a video of him asking ...