On Thursday Kim was seen leaving Barry’s Bootcamp after a hard pre-wedding workout session. Later that same day she was seen out buying refreshments.

With a little more than a week away from her big wedding day, Kim Kardashian is keeping her cool — and is definitely in charge.

“Extra’s” Renee Bargh caught up with the bride-to-be at the launch party for the new World’s Most Beautiful 3D magazine and asked Kim about how she’s dealing with her mother, Kris Jenner, who recently admitted to Bargh she’s been “kind of a momzilla.”

Kim said she put her foot down when it came to the reportedly 500+ guest list. “I’ll look at the list and I’ll be like, ‘Why is this person on the list? Why is this person? I don’t know this person. This is your friend.’ This is my wedding. I gotta approve the list!”

Ahead of Thursday’s episode, check out a clip of Kim’s Project Runway appearance above. Project Runway airs Thursdays at 9 p.m. (EST) on Lifetime.

Kim attending the World’s Most Beautiful Magazine Launch Event at Drai’s Hollywood on August 10, 2011 in Hollywood, California.

August 10, 2011: Kim Kardashian stops by Vera Wang, who is designing her wedding dress, for a quick appointment yesterday morning in New York City.

August 10, 2011: Kim Kardashian wears classic black and white as she lands at John F. Kennedy International Airport, JFK, in New York City this morning.

Here are some cute pics taken in April during the Kardashian/Jenner family vacation to Bora Bora. Kris and Bruce renewed their wedding vows!

Kim was busy out running a bunch of errands in Los Angeles yesterday. She was seen stopping for some pizza to-go before heading to a San Fernando Valley studio. She also stopped by the local office building in Van Nuys, and was seen getting a pedicure.

Yesterday afternoon Kim took her hubby-to-be to visit her father’s grave site at Inglewood Cemetery in Los Angeles. The couple seemed in good spirits despite the nature of their outing. A lady was there to catch it all on camera. After their visit they grabbed some food to-go from an El Pollo Loco drive-thru.

Khloe Kardashian, Kendall Jenner, Kim Kardashian, Kourtney Kardashian and Kylie Jenner attend the 2011 Teen Choice Awards at Gibson Amphitheatre on August 7, 2011 in Universal City, California.