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Sandra Bullock

Deano / Benassi / Splash News

Almost a week after her divorce from ex Jesse James was publicly finalized, Sandra Bullock was spotted over the holiday weekend with the new man in her life: son Louis.

The Oscar-winner celebrated the 4th of July in Austin, Texas, where she was snapped while furniture shopping at Wildflower Organics on Saturday.

Bullock spent her first Independence Day as a mom looking calm and casual in denim shorts, a white T-shirt and sunglasses as she strolled the streets with the 6-month-old love of her life.

In other Independence Day celebrity sightings, Kourtney Kardashian and boyfriend Scott Disick celebrated the holiday Sunday night by joining a group of friends for dinner at Georgica Restaurant & Lounge in Wainscott, New York. The new parents held hands during their meal of White Truffle Lobster mac 'n cheese and specialty Absolut vodka cocktails.

Eclipse hottie Nikki Reed celebrated the 4th with her family in Southampton at the AXE Lounge, where the actress tested out her DJ skills at the turntables for a few songs.

Also spotted at the AXE Lounge on Sunday was Kim Kardashian's ex Reggie Bush dancing and chatting with model Amber Rose. The odd couple spent most of the night together and got close when whispering in each other's ears over the loud music.

Earlier that same day, California Gurls singer Katy Perry and fiancé Russell Brand shopped around Biba Boutique in Southhampton, NY, just missing Real Housewives of New York City stars Jill Zarin and Kelly Killoren Bensimon, who also stopped by the boutique for some retail therapy.

—Written by Brett Malec. Marc Malkin is on vacation.

Follow Marc Malkin on Twitter and Facebook.

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