As he competes on Dancing With the Stars season 34, Dylan Efron has girlfriend Courtney King by his side - but it hasn't always been the easiest to navigate. "I would be lying if [I said] Dancing With The Stars wasn't tough, but I think it's tougher on Courtney than me," Efron, 33, admitted on the Monday, October 13, episode of the "Viall Files" podcast. Efron explained that he's in the rehearsal studio for "five hours a day," adding that by the end of the day his "brain's mush, [his] body hurts.