Star Tracks: Tuesday, September 7, 2010

As she awaits her Oct. 27 arraignment on drug possession charges, Paris Hilton enjoys a taste of the good life, shopping in Maui, Hawaii, during a getaway with beau Cy Waits on Monday.

A solo Jessica Simpson makes a well-accessorized arrival in New York after flying in from L.A. on Monday.

Who knew she was such a fan? Ashlee Simpson-Wentz leaps to her feet Monday night while watching tennis star Roger Federer triumph at the U.S. Open tournament in New York. Also in the singer's cheering section: Cameron Diaz and husband Pete Wentz.

Meanwhile, Gavin Rossdale and Gwen Stefani join Federer's dad courtside at the match. "A good night at the us open," Rossdale later Tweeted. "I love new york."

Katie Holmes and Tom Cruise get an early start to their day, setting off from their New York City apartment Tuesday with a shy Suri.

Michelle Williams dazzles in her beaded Jason Wu gown and platinum do at the premiere of her new western drama, Meek's Cutoff, Sunday at the Venice Film Festival.

What a happy pair! Christina Aguilera and 2½-year-old son Max cap off a family dinner Sunday night with a smiley stroll through Venice, Calif.

Angelina Jolie transfers planes in London en route to flood-ravaged Pakistan. She has called on everyone who can lend their support for the "economic and social catastrophe" in the region.

Easy riders George Clooney and Elisabetta Canalis take a spin around Malibu Saturday.

After sipping Butterbeer at the Hog's Head pub, John Travolta and Kelly Preston get caught up in the magic of Ollivanders wand shop at The Wizarding World of Harry Potter in Orlando.

Looking tres chic in a beret and sporting a Chanel bag, Miley Cyrus strolls the streets of Paris Saturday with a small entourage.

Good form! Reese Witherspoon and her beaming beau, Jim Toth, cut a clear path on Friday while jogging together in Santa Monica, Calif.

Hey baby, she's a rockstar – and a movie star! Rihanna suits up in her chic camouflage gear while filming scenes for Battleship in Hawaii on Friday.

They're in love...but out of gas! Jesse James and his new ladylove, L.A. Ink star Kat Von D, fill up their tank before lunching together in West Hollywood on Friday.

Avatar cutie Sam Worthington pounds the pavement in his native Australia Friday, running errands around Sydney with stylist girlfriend Natalie Mark (not pictured).

Katy Perry continues her London press tour on Friday, leaving Claridge's hotel in a sweatshirt dress adorned with leather accents.

Looks like class is back in session! Gossip Girl's resident blue-eyed hottie Chace Crawford lugs his books on the N.Y.C. set on Friday. Nate amp co. return for season 4 on Sept. 13.

Where to? Kelsey Grammer keeps a protective arm around his expectant girlfriend, Kayte Walsh, during a quiet stroll through New York City on Friday.