No 1 YouTuber in Singapore JianHao Tan defied critics of his endless high school listicle videos; aged 27, he has a business with a staff of 30

• With 4.25 million subscribers, Tan Jian Hao is the country’s most popular YouTuber off the back of listicles such as ‘17 Types of Students in an Online Class’
• The YouTuber says he never meant to make social media his full-time job, until a client paid him US$11,000 to promote an app in 2014; now he has a staff of 30