10 children who are making hundreds of thousands of dollars - and possibly millions - through YouTube

Total combined subscribers: 31.2 million

Total combined views: 10 billion

Estimated yearly earnings: $601,800 to $9.6 million

Boram, a 6-year-old girl who lives in South Korea, is the star of two channels. Boram Tube Vlog, the more popular of the two, was founded in 2012 and shares glimpses of her daily life.

Boram Tube ToysReview features toy reviews and videos of her playing, often with friends and family.

Subscribers: 2.9 million

Total views: 3.9 billion

Estimated yearly earnings: $635,100 to $10.2 million

The playful antics of Beam, a boy who lives in Thailand, are shared on his popular channel, which was first created in 2012. He likes to dress up in costumes, and his family members often costar alongside him.

Subscribers: 13.1 million

Total views: 5 billion

Estimated yearly earnings: $899,500 to $14.4 million

Brother and sister Alex and Gaby, residents of the United Kingdom, team up for videos about toys, challenges, and kids activities. The channel was created in 2012.

Subscribers: 3.7 million

Total views: 1.3 billion

Estimated yearly earnings: $1.2 million to $18.8 million

This channel doubles the fun with identical twin girls from South Korea. The 11-year-olds enjoy doing mukbangs (videos of them eating different foods) and how-tos.

Subscribers: 21 million

Total views: 30.9 billion

Estimated yearly earnings: $2.3 million to $36.5 million

Popular toy reviewer Ryan Kaji's channel started in 2015, featuring vlogs in addition to toy unboxings and reviews. The seven-year-old is based in Los Angeles.

Subscribers: 24.6 million

Total views: 10 billion

Estimated yearly earnings: $2.3 million to $37.3 million

Brothers Vlad and Nikita are the stars of this US-based channel. They film videos playing with toys and telling stories — often with their mother. The channel also features some original cartoons.

Subscribers: 32.1 million

Total views: 11.1 billion

Estimated yearly earnings: $2.8 million to $44.7 million

Since 2015, Diana has been the star of this channel, featuring videos of toy unboxings, challenges, vlogs, and more. She's based in the US and often films with her brother Roma, who also has a channel of his own.

Subscribers: 11.2 million

Total views: 3.6 billion

Estimated yearly earnings: $1.2 million to $18.6 million

Siblings Maria Clara, 7, and JP, 10, hail from Rio de Janeiro, Brazil. Their channel, established in 2015, follows the brother-and-sister duo as they go up against challenges and play games together.

Total combined subscribers: 61 million

Total combined views: 23.4 billion

Estimated yearly earnings: $3.7 million to $59.7 million

Russian-American girl Stacy (known as Nastya in Russian), based in Florida, is a triple threat with a trio of successful channels that follow her adventures with her father. Like Nastya is her most popular channel, and is in Russian.

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