The Billion View Club: YouTube's Most Watched Music Videos
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Adam Bettcher/Getty; Paras Griffin/Getty; ChinaFotoPress/Getty

YouTube's Billion View Club is an elite group, but membership is growing fast. For a decade, very few videos ever even approached the milestone – in fact, as of the start of June 2015, only two clips could boast a billion-plus views. Then, over the course of 2015 alone, over 10 new clips crossed the mark, and more are likely to follow suit shortly. While the Billion View Club is still an exclusive circle, let's look back at the videos that will likely stand as monuments of our time.