Snoop Dogg had a huge party yesterday (April 20) to celebrate the cannabis holiday, but unfortunately the shindig was shut down by the cops before Mr. Lion even arrived, according to a report by TMZ. The party, dubbed Snoop Lion 4/20 Festival, was set up in a mansion in the Hollywood Hills. But, once neighbors saw all the cars, heard the loud music and got a whiff of what was going on, the police were called in. The festivities were shut down, with the man of the hour showing up just as people were being told to go home. According to the report, Snoop was cooperative and no arrests were made. What a buzz kill.