2. Ariana Grande, 21 ($16 Million)

After her short-lived Nickelodeon Series Sam & Cat, Ariana’s showcased her talent in both singing and dancing. As of 2015, she’s worth about $16 million. Judging by how well her career is going, it’d be right to expect that figure to go up by the millions in the next few years. Although Ariana is earning substantial amounts of money on her own, she comes from a wealthy family of two hard working parents. She left highschool at 15 to attend a Broadway musical, yet the school mailed her all of her educational materials so that she could be tutored and keep up with her classmates. This is how you make money at a young age.