Elon Musk fired back at Bill Maher over a claim he made about the Tesla CEO using drugs. Newsweek reached out to Musk's ...

But the Trump-Musk feud represents something more than pettiness between two bilious billionaires with gigantic egos. Today, ...

Sometimes a petty disagreement can become a lifelong grudge. Louis Chilton picks 11 of the most notorious feuds between musical collaborators ...