You Won't Believe How Much the World's Richest Heirs and Heiresses are Worth

Adam Levine, $90 million

Maroon 5 frontman and The Voice judge Adam Levine is one of the most well-known faces in music. He was born in Los Angeles and started singing in 1994. Maroon 5's albums have gone multi-platinum, and the band has won three Grammys, three AMAs, eight BMAs, an MTVMA, and a World Music Award.

Ariana Grande, $50 million

The singer, actress, and songwriter is currently one of the world's most popular performers. After starting out on Broadway when she was a child, appearing in the musical "13," she had a lead role on the Nickelodeon show Victorious. She then launched her solo music career, which is arguably the most popular aspect of her work.