Q: Passage: This article lists the fifty most-subscribed channels on the video platform YouTube. The ability to "subscribe" to a user's channel was added to YouTube by late October 2005, and the "most subscribed" list on YouTube began as a chart by May 2006, at which time Smosh was number one with fewer than three thousand subscribers. Since December 22, 2013, the most subscribed user has been PewDiePie, whose channel has over 62 million subscribers as of April 2018.

Question: Based on this passage, who has the most subs on you tube? Let's give stream of consciousness first:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
The relevant information is: Since December 22, 2013, the most subscribed user has been PewDiePie, whose channel has over 62 million subscribers as of April 2018. Therefore, the final answer is PewDiePie.