They’re always looking for ways to expand their empire, and yesterday (April 12) Kourtney Kardashian and Khloe Kardashian were spotted leaving a business meeting in Studio City.

Both ladies tweeted about the “secret” gathering with the OPI cosmetic company before heading off to Hugo’s for some lunch.

Credit: Celebrity Gossip

Nicole Richie walks back to her car after lunching with a friend at Sushi Nozawa in Studio City. Richie could be seen wearing a loose, flowing top, black ankle boots and carrying a leather, fringe purse.

Credit: Zimbio

Sticking to her daily fitness regimen, Kim Kardashian was spotted as she left the local gym in Studio City, CA on Wednesday (April 6).

After the workout Kim tweeted, "I had the hardest workout of my life today!"

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Kicking her day off with a physical fitness session, Kim Kardashian was busy keeping her curvaceous figure in tip-top shape at the gym in Studio City, CA on Tuesday (April 5).

The E! darling donned a grey and black as she toted her Chanel bag and Fiji water past paparazzi and up to her nearby ride following the morning workout.

Credit: Celebrity Gossip

Nicole Richie was spotted leaving her usual gym in Studio City, CA yesterday afternoon, March 28, 2011.

Credit: Zimbio

In no mood to have her photo taken, Vanessa Hudgens along with sister, Stella, attempted to keep a low profile after a work out in Studio City, CA on Wednesday (March 23).

Clad in exercise wear, the “Beastly” babe kept her face covered as she walked along with a post-workout frozen treat.

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Julianne Hough was seen arriving at a gym for an afternoon workout in Studio City, CA yesterday, March 22, 2011.

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Pairing up for an afternoon retail session, Kourtney Kardashian and her mom Kris Jenner ventured out shopping in Studio City, CA on Tuesday afternoon (March 22).

The E! reality stars both looked casual cute while joined by Joyce Bonelli for the visit to Santiago Vintage Shop as they searched the home furniture offerings.

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Sticking to her routine fitness regime, Kim Kardashian was spotted post workout in Studio City, CA earlier this morning (March 17).

The “Keeping Up with the Kardashians” beauty exited the exercise facility out a back entrance, accompanied by workout buddy Molly Sims while carrying one of her many extravagant bags.

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Hoppin' aboard for a cruise around town, Vanessa Hudgens and Josh Hutcherson paired up for a motorcycle adventure before arriving together at Hudgens' home in Studio City on Tuesday (March 15).

The "Beastly" babe seemed quite smitten as she chatted with her "Journey 2: The Mysterious Island"  co-star before the twosome made their way inside and away from paparazzi view.

Credit: Celebrity Gossip