Snoop Dogg -- 4/20 Party Shut Down

Snoop Dogg's 4/20 party in Hollywood was shut down before the star of the show even arrived ... TMZ has learned. "Snoop Lion 420 Festival" -- a giant party being held in a Hollywood Hills mansion to celebrate all things cannabis -- started at 11:00…

Lori Heuring Lorri Bagley Lucy Liu Luján Fernández