It's been four years since Rickrolling became the most well-known prank on the Internet. So, just how many people have been baited throughout the years?

It's nearly impossible to tell, but dangit, we tried! By our conservative estimate, at least 150 million people have been rickrolled since Rick Astley released "Never Gonna Give You Up" in 1987. This includes record sales, YouTube counts, numbers of people present at IRL rickrolls, and every family who decided to watch the Macy's Thanksgiving Day Parade in 2008.

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