You can cremate the hair and put it into a woman's uterus and the offspring will be identical to justin beiber so you'd be able to lock Justin beiber in a closet and have the new justin beiber take over. From there you can start your own business and advertise it through his songs and make a lot of cash. Then you can go on a killing spree and attempt world domination. Try your very hardest. After the 9th week of your son being identical to justin beiber free the real justin beiber from the closest and he won't know what your son did and he will be executed. Well I'm pretty sure he can't e executed but idk. Maybe in Canada or you can just get someone to execute him like pay it off with the money you got from your business then when the apocalypse happens claim you are a prophet and you can raise people from the dead as proof, you will get followers then your son will show himself and everyone will think you actually can raise anyone from the deal meaning you have god like powers.
I would consider what you have to be the most powerful specimen in the entire universe.
Worth about 1200 trillion. Good luck.