Star Tracks - Friday, September 7, 2007

Britney Spears picks up matching Versace purses – one for "cousin" Alli Sims (not pictured) – while out for a day of shopping in Beverly Hills on Thursday. Next up for the pop star: kicking off Sunday's MTV VMAs with a highly-anticipated opening performance.

Angelina Jolie plays attentive mom, picking up son Maddox from his New York City school on Thursday. The day before, Jolie took her 6-year-old for some back-to-school shopping at FAO Schwarz toy store.

Fergie wows the New York City crowd at the Fashion Rocks Concert at Radio City Music Hall on Thursday. The "Big Girls Don't Cry" singer later paired up with Aerosmith's Steven Tyler for a rendition of "Walk This Way."

See all the best-dressed stars at Fashion Rocks here.

Jessica Alba backs up her reputation as an accommodating actress by giving New York autograph seekers just what they're looking for as she arrives for an appearance on the Late Show with David Letterman on Thursday.

After bringing down the house with a rendition of "It's a Man's World," Mary J. Blige and Usher share a hug onstage at Thursday's Fashion Rocks Concert. The duo later joined their spouses, her husband Kendu Isaacs and his wife Tameka Foster, at the Rainbow Room.

See all the best-dressed stars at Fashion Rocks here.

A five-months pregnant Nicole Richie – who later joined Blige and Usher in the VIP area of the Rainbow Room – shows off her maternity style in Roberto Cavalli at the Fashion Rocks Concert.

See all the best-dressed stars at Fashion Rocks here.

Stepping out of his iconic role as Harry Potter, Daniel Radcliffe leads his December Boys costar Teresa Palmer down the red carpet at the West Hollywood premiere of their indie drama on Thursday.

They may be promoting a drama, but costars Jodie Foster and Terrence Howard share a laugh – and an impromptu autograph session! – on their way to the premiere of The Brave One at the Toronto International Film Festival on Thursday. The thriller hits U.S. theaters on Sept. 14.

Though they chose a car over a horse-drawn carriage, Jennifer Lopez and Marc Anthony (not pictured) seem content with their mode of transportation as they leave their Manhattan hotel on Thursday.

Fashion Week staple Demi Moore forms a fabulous threesome with Hilary Swank and Clive Owen at the Miss Sixty fashion show at New York's Bryant Park on Thursday.

For more star sightings at Fashion Week, go to our Off the Rack blog.

Also arriving for the Miss Sixty show: a solo Mischa Barton, who partied with fellow fashionista Demi Moore at the Une Journée à Paris kickoff party Tuesday night.

Hairspray costars Nikki Blonsky and Zac Efron show a little love Down Under, where they premiered their hit musical film at the George St. Cinemas in Sydney on Thursday.

After showing off her post-baby body for a new Agent Provocateur ad campaign, a demure-looking Maggie Gyllenhaal engages in a more modest activity – attending the Miss Sixty fashion show in New York City on Thursday.

Jerry O'Connell sweats out the wait for his new ABC fall series, Carpoolers, to premiere next month by hitting the streets of Los Angeles Thursday morning for an intense workout.

After multiple engagements the night before, an on-the-go Jessica Simpson gives a colorful parting shot as she hits the streets of New York City Thursday morning.

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