CHRIS B …NOT MY FAULT

Chris Brown says the reason he lost his temper and threatened a valet last night was because the guy tried to fleece him ... TMZ has learned.  source connected to Chris tells TMZ ... the valet outside PINZ bowling alley in Studio City, CA -- where Chris was attending a charity event -- was supposed to charge $5 a pop ... but when Chris tried to pick his car up, the valet tried to scam him by charging $10. he source says other people who parked at PINZ last night were charged $5. Chris believes he was singled out because he's famous. Chris says it's not about the money ... it's the principle of the thing.

You can watch the video at TMZ.com It all started when Chris Brown got riled up at a valet guy outside of an LA bowling alley last night when he was told the parking charge would cost $10…and TMZ has the whole thing on tape. The incident took place outside of PINZ bowling alley in Studio City, where Breezy had been attending a charity event with friends.

KIM K PREGNANCY SCARE

Kim Kardashian was rushed to a doctor in Los Angeles on Tuesday night when she feared she was having a miscarriage after returning from Paris fashion week, Page Six can exclusively reveal. And while it was fortunately a false alarm, Kim has now been ordered by her doctors to stop overdoing it and get more rest. The four-months-pregnant reality star flew to Paris on Sunday to join baby-daddy Kanye West at a Givenchy show and dinner after, with guests including Frank Ocean and designer Riccardo Tisci. But sources say that when the E! star arrived back in LA on Tuesday, she was immediately rushed to her doctor in tears. Read how she is doing now at NYPost

JLO ‘S BIG BUCKS FOR KINDERGARTEN

TMZ is reporting that Jennifer Lopez is experiencing the kind of stress that hundreds of rich L.A. mommies endure every year -- getting their kids into exclusive, VERY EXPENSIVE private schools. We’ve learned Jennifer has been making the rounds in L.A., interviewing schools for her 5-year-old twins, who will be starting kindergarten in the Fall. She went with kids in tow Tuesday to the famous Buckley School in the San Fernando Valley ... considered by many to be the best L.A. has to offer.  By the way, it better be -- tuition and other costs total $33,345 for the year -- PER KID! Lots of very rich, very famous parents try getting their kids into Buckley.  Alums include Paris Hilton, Kim Kardashian, Nicole Richie, Matthew Perry and current student Paris Jackson.

LEBRON ANDFIANCE SET THE DATE

The date is set for LeBron and Savannah. As we reported earlier in the week, the wedding of the year … well, as far as some folks are concerned … is going down between the Miami Heat b-ball superstar and the mother of his two children. According to reports, the couple sent out “Save the Weekend” notes to family and friends asking them to block off September 13-15 on their calendars. As usual, TMZ got their hands on what is said to be the invite and you can see it below.