Zack loved to preform on stage, 1) because he got a lot of attention, it something he loved the most about being a rockstar and 2) He can get rid of a lot of energy that away. Even though that wouldn't last, because of his ADHD. After performing a concert he felt extremely energetic, but eventually he would find away to get rid of it. Once the concert was over and he headed back stage, he immidately checked his cellphone to see if he had any messages, once he checked them, he continued to walk around backstage. Just waiting to go, he would either ride with the band or walk. He probably would go to a club or something, just to dance the night away to get rid of all his energy or try to. He loved how many fans would appear backstage just to be with them. He would have to restrain himself from feeding off of them.