His real name is Felix Arvid Ulf Kjellberg he is a Swedish video game commentator on YouTube.
His channel is one of the fastest growing YouTube channels, and as of December 2013 has over
19 million subscribers.
He has won the award for the "Most Popular Social Show","Sweden Social Star Award" & "#Gaming"
He's also involved in charity work for the World Wildlife Foundation and St. Jude Children's Research
Hospital.
PewDiePie also began a "Water Campaign" charity, where his subscribers could donate money in honor
and celebration of reaching 10 million subscribers. The goal was raising $250,000, however the charity
raised over $450,000.
I've been a subscriber on his channel over 3 years and I really love him. I'll leave you a link to his channel,
to his online-shop and to his twitter account!