Dylan Efron is getting support from his entire family - including brother Zac Efron - as he steps into the ballroom for Dancing With the Stars season 34. "My dad is super excited," Dylan, 33, exclusively told Us Weekly on Wednesday, September 3. "He has little kids, four and five. They're all super excited. My mom was honestly just shocked. She's just like, 'Where'd this come from?' My brother is supportive." Dylan explained that Zac, 37, went to a live Dancing With the Stars taping "a long time ago" and gushed over his experience. "He's like, 'The best part is going to be those live shows.