Question: Who has the most subscribers on youtube ever?
Disambiguated questions and answers: question: Which channel has the most subscribers on youtube ever as of Dec 23, 2013?
Who has the most subscribers on youtube ever as of Dec 12, 2013?
Which channel has the most subscribers on youtube ever as of Dec 8, 2013?
Which person has the most subscribers on youtube ever as of Dec 23, 2013?
Which person has the most subscribers on youtube ever as of Dec 8, 2013?
answer: PewDiePie
YouTube Spotlight
PewDiePie
Felix Arvid Ulf Kjellberg
PewDiePie
Felix Arvid Ulf Kjellberg
PewDiePie
Natural Questions answer: PewDiePie (from the Wikipedia article "List of most subscribed YouTube channels")