Rihanna's ongoing Diamonds World Tour just received a blunt serving for justice.

The singer's 10-tour bus caravan was stopped yesterday at a border crossing in Detroit, fresh off her two shows earlier this week in Toronto. Investigators detected the smell of weed on one of the tour buses and a drug-sniffing dog later found the drug on a specific person.

But was it her? Find out after the jump!

Pot is legal now in Colorado and Washington and few areas of the country might be happier about it than Hollywood.

Somewhere ranked between old hippies and college students, celebrities are among the biggest aficionados of the green stuff. And we're not talking about declaring that people should be accepting of marijuana or non-judgmental of what people do with their free time. No, we mean full-on smoking a spliff with paparazzi cameras firing and not giving a rap. From Miley Cyrus to Rihanna, check out our roundup of the top 17 celebrities who might want to consider moving to Colorado to get their green on.

What famous Olympian was caught smoking out of a bong? Find out after the jump!

At this rate, Snoop Dogg -- sorry, Snoop Lion, won't have any countries left to perform in!

Norway is the fourth country to ban Snoop from entering after setting down a two-year ban stemming from a drug bust in the country last month. He's hardly the only celebrity to be forbidden from entering a country though. For reasons ranging from criminal records to bad jokes, a slew of famous faces won't be showing their mug in nations all across the world! Check out our round-up of 7 celebrities to be banned from entering foreign countries!

Which actor is prohibited from entering China because of a movie role? Find out after the jump!