Kim Kardashian joined sister Kourtney and her son, Mason, yesterday to film Kourtney and Khloe Take Miami in Florida. The girls started the morning in front of the camera while shopping for Maseratis . Mason was decked out in a little blue outfit for the trip to the car dealership, after getting equally colorful on Wednesday when he donned green to celebrate St. Patrick’s Day . Kim later had time to fit in a trip to the gym , and this morning she was right back to work for a promotional appearance at a Walgreens in a skirt and sky-high heels. To see more of Kourtney and Kim’s big day with Mason, just read more. View 25 Photos ›

Jesse James attempted to keep a low profile as he walked his kids into school this morning amid mounting evidence that he did carry on an affair behind wife Sandra Bullock’s back . Yesterday when the news broke, most of you were in disbelief, but as the day went on, the poll numbers started to show the tide turning. Sandra canceled her scheduled appearance at the UK premiere of The Blind Side and apparently she moved out of their home days before the report broke. Plus, more details from the InTouch article say that the alleged mistress, Michelle “Bombshell” McGee, showed off text messages dated as recently as March 14, a week after her heartwrenching Oscars acceptance speech. We totally fell for Jesse during Sandra’s amazing award season , and he is still sporting his wedding ring, but tell us - what is your

George Clooney’s time on the Hawaii set of The Descendants got a bit more strenuous than usual yesterday - he spent the better part of the afternoon jogging in front of the cameras. He was able to take a walk to talk with director Alexander Payne before switching out of his blue polo shirt costume and heading home. George didn’t skip a beat getting to work after his time at the Oscars , though he could hardly hope to be in a nicer place filming than Oahu. To see more George, just read more. View 10 Photos ›

Tom Brady brought his doggie Lua to the UCLA football field yesterday where he threw around the pigskin with some friends. This week he and his wife Gisele have stepped back into the spotlight after her beautiful bikini and baby Benjamin Vogue photo shoot and trips out to show off her amazing back-in-shape body . In Vogue , Gisele talked about what it was like to go through much of her pregnancy during Tom’s season last Fall and even said she considers herself a “Bostonian,” though they’re still building an LA home to be close to Tom’s older son Jack. Some of Tom’s fellow Patriots started the voluntary …

Ashlee Simpson and Pete Wentz brought Bronx along as they headed into a studio yesterday. Ashlee’s been relaxing in LA since wrapping up her recent work on Broadway , and this week it was Jessica’s turn to temporarily call the Big Apple home as she promoted The Price of Beauty . Jessica spent her Monday morning appearing on both The View and Good Morning America , where she talked about being an aunt, before last night’s debut. Ashlee was excited for the show and it sounds like most of you