Known online as PewDiePie, Felix Kjellberg is one of the internet’s biggest stars - he has more than 100 million subscribers to his KZfaq channel, and over 24 billion views. The PewDiePie channel is best known for its irreverent gaming content, shot in a “Let’s Play” style - videos of Kjellberg playing video games while giving an expletive-strewn running commentary. "Let’s play" became a hugely popular KZfaq genre, and PewDiePie its superstar; his repertoire has expanded to include live-action and animated comedy shorts.