Gangnam style viral video

Viral music video from Korea. Total number of YouTube views was initially exponential, growing around 4.89% per day.
Most viewed video in YouTube from November 2012 to July 2017.

Exponential fit with Python for data from businessinsider (alternate link).
The estimated doubling time: 14.2 days (for initial exponential phase).
See:
- cumulative views in wikipedia. The data is below the graph, in the description.
- another set of data in business insider