As he prepares for the debut of his new album, "My World," which hits stores Nov. 17, his calendar is packed with performances, interviews and meet and greets. It's a daunting schedule for anybody, let alone a 15 year old with no formal training.
"I just take it one day at a time," Mallette says. "And if he's over-tired, and I feel like there is too much pressure on him, we scale back and we cancel some things. We just take it one day at a time and try to get some proper rest and try to get used to staying in different hotel rooms."
Usher said there is no time for rest right now when the momentum is building for his future success.
"It's really up to him," Usher says. "How badly do you want it. The moment that I want it more than you do, it's over.
"So my advice is enjoy it while you got it. Make the best of it and be fruitful. You have to be a sponge, wherever you are, soak up everything and reproduce something incredible."
Time will tell how long the kids will have "Bieber Fever." It could all disappear as quickly as it started but, for now, Justin Beiber is still using YouTube, Facebook and Twitter to climb his way up the Billboard charts.
"It all feels good," he says. "I've practiced my signature since I was like 6 years old.
"I thought I was going to be a hockey player, so I used to do, 'Justin Bieber, No. 6.' I dropped the six. I put a heart a lot of times," he says with a coy smile, "for the girls."