The highest-paid YouTube star is just 8 years old

The most highly-paid YouTube star is just eight years old, and he's considered a veteran of the "unboxing" genre. 

At the age of three, Ryan Kaji started unboxing toys in front of the camera and commenting on them. 'Ryan ToysReview' debuted in 2015 – it has since grown into a children’s channel called Ryan’s World with 23 million subscribers.

The channel's content evolved as Kaji grew up. He now also conducts science experiments and has branched out beyond YouTube with merchandise, a show on Nickelodeon and a deal with Hulu. 

Topping the list of highest-paid YouTube stars released by Forbes on December 18, Kaji reportedly earned over SGD 35 million between June 1, 2018 to June 1, 2019. 

Here are the rest of the top ten stars cashing in on the streaming platform: 

#2: Dude Perfect

Consisting of five friends in their 30s, Dude Perfect play sports, perform stunts and break Guinness World Records.

Earnings: SGD 27 million

#3: Anastasia Radzinskaya

Also known as Nastya, Russian-American YouTuber Anastasia Radzinskaya is the star of seven YouTube channels run by her family. She has 107 million subscribers across her channels who have watched her videos 42 billion times. 

Earnings: SGD 24.3 million

#4: Rhett and Link

American comedy duo Rett and Link are known for creating and hosting Good Mythical Morning – on which they eat foods like Cheetos-flavored Pop-Tarts and sing with stars like Kelly Rowland. 

Earnings: SGD 23.7 million

#5: Jeffree Star

Once the most followed persons on MySpace in 2006, Star abruptly left the music industry in 2013. The following year, he founded his own cosmetics company Jeffree Star Cosmetics, which he promotes on his YouTube channel. 

Earnings: SGD 23 million

#6:  Preston (Preston Arsement)

Preston rose to fame playing Call of Duty and quickly became so popular that he started posting friendly pranks in addition to his gaming content.

Earnings: SGD 19 million

#7 (tie): Markiplier (Mark Fischbach) and PewDiePie (Felix Kjellberg)

Markiplier is a favorite for sponsors looking to reach the gaming community, while gamer PewDiePie was once YouTube's top-earning star.

Earnings: SGD 17.62 million

#9: DanTDM (Daniel Middleton)

Daniel Robert Middleton, known online as DanTDM, is a British YouTube personality, professional gamer, and author. His online video channels have covered many video games, mainly the popular game Minecraft. 

Earnings: SGD 16.2 million

#10: VanossGaming (Evan Fong)

VanossGaming is a Canadian internet personality, video game commentator, and music producer. He posts montage-style videos on YouTube of himself and other creators playing various video games.

Earnings: SGD 15.59 million