Did you know today is "90210 Day?" Die hard fans of 1990s classic "Beverly Hills 90210" have been patiently waiting for this day for two decades. For today is September 2, 2010, otherwise known as '9/02/10.' Ridiculous, we know, but we said die hard fans. To commemorate this once-in-a-century occasion, we've put together some of the most ridiculous things about "90210," including the cast's amazing hair, "Donna Martin graduates," and the fact that Maroon 5 actually played a show at The Peach Pit. What do YOU think were the most ridiculous parts of "90210?" Submit them below!