Jay Leno narrowly dodged a nasty motorcycle accident on a California freeway -- and now we have video of the wipe out. One woman's being blamed for causing the pileup ... but we'll break down the footage and get her side of the story. Plus, Justin Bieber accused of stealing money to get a penis enlargement ... and Rihanna accused of giving Chris Brown an STD? Two totally false, and hysterical lawsuits -- but we'll explain why there's not much the celebs can do about it.