It's their world -- we're just living in it

By LESLEY ABRAVANEL

lank@aol.com

The Tour de Lance has reached Miami! Seen dining at Nobu Monday night: new best friends Lance Armstrong and Matthew McConaughey. According to our spy, 'They were just having dinner and chilling. Matthew said they're in town to `chill, bike ride, swim and just do their thing.' '' Which is exactly what they did later that night at B.E.D., where Brooke Hogan and ''a Pussycat Doll'' were also seen hanging out. The boys also hit Snatch and, despite weather warnings and lifeguards trying to get them out of the water, the surf. According to one of our spies, 'It was as if they were in a supermarket. They picked out, like, 30 different women. Matt would say, `I'll take that one,' and Lance would point to another. It was insane.''

Mariah Carey arrived fashionably late to her concert afterparty last weekend at Nocturnal -- 2:30 a.m., specifically. Carey was escorted through the club's main entrance where she was greeted by throngs of admirers. She arrived on the arm of her manager/producer Benny Medina and partied with multiplatinum performing artists/collaborators/friends Busta Rhymes, Timbaland and Pharrell Williams. After posing and smiling for the camera, Carey got down to serious partying with The World Famous DJ Clue spinning hits from her two decades of classics.

Summer in Paris? Why bother when the hotel heiress Le Hilton is coming here on Tuesday to celebrate her debut album Stars Are Blind? Brent Bolthouse Productions and Ingrid Casares are hosting the big record launch at Suite. The appropriately named DJ Vice will spin. Antics -- er, party starts at 10.

Famed shutterbug Patrick McMullan was spotted at Karu&Y photographing its custom uniforms by local designer Dulce de Leche, which will debut at their intended opening in September. McMullan was also spotted doing his thing Wednesday night at the Forge, where PR pro Nick D'Annunzio was celebrating his birthday.

Jane Ubell-Meyer, president of Madison & Mulholland -- the purveyor of premiere gift bags to the stars -- is coming to Miami to teach a class she conducts at NYC's Fashion Institute of Technology on the ''Art of the Goodie Bag.'' Because goodie bags are as celebrated in Miami as they are in New York and L.A., Ubell-Meyer decided to bring her class here this fall. Her bags feature products such as Diva Bikini, License 2 Bling and CAO Cigars -- all products previously received by the likes of Paris and Nicky Hilton, Mya, Jessica Simpson and Eva Longoria in Madison & Mulholland's highly desirable swag bags.