Getting a breather from her hectic household, Heidi Klum stepped out for a bout of holiday shopping in Beverly Hills on Saturday (November 28). Only seven weeks removed from giving birth to her fourth child, Heidi was bundled up for the chilly weather as she dropped by the local Bristol Farms.

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Candids > 2009 > November 28: Out at the Bristol Farms

Heidi Klum introduced her gorgeous 7-week-old daughter Lou Sulola on her official Web site today!

Check out what it’s written on the site about Lou:

It´s difficult to imagine loving another child as much as you love your existing children.Anyone who has a family will tell you this.Where will one find that extra love? If you love your existing children with all of your heart, how then can one possibly find more heart with which to love another?
On Friday October ninth 2009 at 7:46pm, the answer to this question came in the form of our fourth child and second daughter. Lou Sulola was born and from the moment she looked into both of our eyes it was endless love at first sight. She is beautiful beyond words and we are happy that she chose us to watch her grow over the coming years.

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Pubblic Events > 2009 > November 28: Introducing Lou Samuel

Taking advantage of the red hot deals being had on Black Friday, Heidi Klum imbibed on a family shopping trip in Los Angeles earlier today (November 27).

Heidi was joined by her daughter Leni and mother Erna. The lovely trio browsed the local shops for some much-need new footwear.

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Candids > 2009 > November 27: Out shopping with Leni and Erna

According to various sites, Heidi Klum’s husband Seal is hoping to adopt her 5 ½-year-old daughter Leni before Christmas. The 46-year-singer, who has three children with Heidi – Henry, 4, Johan, 3 and 6-week-old baby Lou – has already started on the legal proceedings to become Leni’s legal guardian.

Heidi’s father, Guenther, fully supports their decision:

“Heidi, Seal and the kids have always been a happy family – in everyday life and in their heart. Then they should also be happy on paper.”

The couple has also been given the support of Leni’s biological father, 59-year-old Italian business man, Flavio Briatore. Flavio, whom Heidi has said has no part in Leni’s life, is currently expecting a child with his wife, 29-year-old Elisabetta Gregoraci.

Shortly after the birth of their first child, Seal, whose relationship with Heidi began when she was pregnant with Leni, spoke out about how he’s always thought of Leni as his own daughter:

Leni is my first child. Just like Henry I saw her take shape and move in Heidi’s body. And I was present at her birth, too. Leni is my daughter and Henry is my son. I am happy to have two healthy children and that Henry will soon be saying papa to me just like Leni does already.

Over the weekend, approximately fifty guests made their way to the home of Heidi Klum and husband Seal to celebrate their son Johan’s third birthday!

The party was train-themed and the two proud parents dressed in overalls and conductor hats along with their other three children – Leni, 5, Henry, 4, and 6-week-old baby Lou.

“They really got into the spirit of the whole train theme,” a source tells PEOPLE. “They always have so much fun together as a family.”

The couple’s LA home was decorated with red, blue, green and yellow balloons and a clown was there to entertain the kids. The guests also got to take a ride on a miniature train that was set up in the backyard.

She was really busy this weekend with the Victoria’s Secret Fashion Show in New York City, and yesterday (November 20) Heidi Klum was spotted arriving back in Los Angeles.

Heidi looked cute and casual as she made her exit from the LAX terminal, sporting a black coat and black track pants and carrying a Starbucks coffee beverage.

Prior to the Victoria’s Secret gig, Heidi confessed that she was super pumped to be walking the runway just five weeks after welcoming her fourth child.

“I am excited,” she explained.  “I’m keeping it all together.” As for her baby Lou, Klum added, “She’s great.  I pre-pumped a lot of milk, left it in the freezer.”

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Candids > 2009 > November 20: At LAX Airport

This past week, a Los Angeles Court Commissioner approved supermodel and reality show host Heidi Klum‘s legal request to take the last name of her husband, pop music icon Seal, People reports.

Heidi Klum is now legally Heidi Samuel.

It is unclear whether Klum will use her new name professionally.