MIKE&TRICIA'S HOLLYWOOD DIRT REPORT

AMERICA FERRERA AMBUSHED BY NOTORIOUS PRANKSTER: AMERICA FERRERA is the latest victim of a Ukrainian journalist notorious for pranking celebrities.

While America was on the red carpet at the Cannes Film Festival this weekend promoting her new movie, this guy ran up and dove underneath her dress! (PHOTO) (PHOTO) (PHOTO)

The offender is the same dude who kissed WILL SMITH and got slapped for his efforts a couple of years ago. He also tried to crash an ADELE Grammy acceptance speech in 2013, and buried his head in LEONARDO DICAPRIO'S crotch this past February.  (PHOTO) (PHOTO)

It's amazing this guy can still get this kind of access. You have to admire him for it, though.

IN DENIAL - KARDASHIANS DID NOT DEMAND JOAN RIVERS BE MOVED: Us Weekly claims KIM and KHLOE KARDASHIAN were seated next to JOAN RIVERS at an NBC industry event the other day and demanded she be moved to another section, because they're not ready to make nice.

Rivers has made fun of their family over the years -- most recently calling Kim’s baby “ugly” -- and a so called insider said because of that, the sisters wanted to be as far away from Joan as possible.

A spokesperson for the E! network, however, insists there is not truth to the story whatsoever.

Meanwhile ...  Kim and KANYE have arrived in Paris for their wedding, but there's conflicting reports on where exactly the ceremony will be held. Initially, word was they'd be making THE BIG MISTAKE on May 24th in France. But over the weekend,  a spokesperson for the mayor of Floren told the Associated Press the couple rented Belvedere Fort, insinuating the power couple will be exchanging vows in Italy not France.

SNAPSHOTS - BRAD PITT TOSSES MATTHEW MCCONAUGHEY A BEER: MATTHEW MCCONAUGHEY was enjoying the sights of New Orleans from his balcony on Saturday when the people he was with noticed BRAD PITT was standing across the street from them on his balcony.

Photos show the two acknowledged each other, then it was somehow decided that Matthew needed a cold beer. Well, Brad just happened to have one, so he tossed Matt a cold one.

I love how the Internet is treating this like it's some kind of landmark exchange of resources between two superpowers.

ROMANCE REPORT: CAMERON DIAZ might be sharing her not-necessarily-shaved fun stuff with GOOD CHARLOTTE guitarist BENJI MADDEN. "They've spent a lot of time at Cameron's house," a source tells the tabs. "He is the nicest guy and treats her like a lady." (PHOTO)

If this seems like a completely random pairing, it's only because it is. But word is Cameron is good friends with NICOLE RICHIE, who's married to Benji's twin brother and band mate JOEL.