May 21, 2012
In the average week, nearly 10,000 "happy birthday" (English) videos are posted to YouTube.When you include the terms for "happy birthday" in Spanish, Italian, Russian, Portuguese, French, and a few other languages, that number jumps to just over 15,000, meaning that there are over 2,000 posted each day.
Many these videos have been seen over 100,000 times. Here's just one of them:
Birthday searches are consistent throughout the year, with "wishes," "song," and "quote" being popular related terms. People & Blogs is the most-common category for "happy birthday" videos followed by Entertainment and then Music.