Google has revealed that Psy’s Gangnam Style video, the most popular on YouTube in history, has generated more than $8m from the site in advertising since launching last year.

Speaking to investors following the announcement of Google’s Q4 and full-year fiscal results last night, Nikesh Arora - Senior Vice President, Chief Business Officer - revealed that across search display, YouTube and more, Google’s top 25 advertisers are now spending average of over $150 million per year.

Meanwhile, YouTube Partner ...