Stars like Kelly Osbourne, Kate Mara, Shay Mitchell, Erin Andrews, Joan Rivers,Alexandra Chando, Kelly Bensimon and Coco Rocha all attended the Badgley Mischka Fall 2012 Runway Show for Mercedes Benz Fashion Week! The event took place at the Theater at Lincoln Center and what an event it was!

Stacey Bendet, Kristin Chenoweth, Jenna Dewan-Tatum, Kevin Jonas, Danielle Jonas, Krysten Ritter, Ahna O’Rielly, Megan Hilty, Kelly Rutherford, Angela Simmons, Kelly Bensimon and Erin Andrews were spotted at the Alice + Olivia by Stacey Bendet presentation with music by Mia Moretti and Caitlin Moe. It was held at Center 548 in the Big Apple and was a big deal!

The Empire Hotel has been home to fashionista Whitney Port while last minute prepping for her Whitney Eve show tomorrow. She was spotted in the hotel lobby and seemed extremely friendly as she stopped to take photos with fans!

Kris Humphries showed up to Stone Rose Lounge for the tail end of the Betsey Johnson Fall 2012 After-Party last night. He arrived with four guy friends, still wearing his coat and scarf inside the Time Warner Center. Betsey Johnson took the mic and gave a shout out to guests Kris and Richie Rich before making fun of herself for the “less than great cartwheel,” she attempted on stage at her show.

EXTRA’s beautiful Maria Menounos stopped by lia Sophia this week as did many other famous faces including Adrienne Bailon, Carrie Keagan, Brad Goreski, Miss J Alexander, Jenna Bush and Louise Roe. With MBFW bringing out the most fashionable stars, Lia Sophia seemed to be a stop on everyone’s list!

Bar Refaeli and Stacy Keibler (girlfriend of actor George Clooney) were both spotted at the Marchesa Fall 2012 Fashion Show checking out some hot new styles. The two sat next to one another which, may have drawn more attention then the presentation!

KEEP READING FOR MORE STAR SIGHTINGS THIS WEEK…

PHOTO: Stuart Ramson

Micah Jesse caught up with the star of “Real Housewives of Beverly Hills,” Kyle Richards, at the Duracell Mobile Smart Power Lab in NYC’s Madison Square Park on Friday morning (Dec 17).

Duracell has gotten celebs and socials and other New Yorkers to literally help power and illuminate the 2011 numerals on New Years Eve in Times Square by hopping aboard a Power Rover and pedaling.

Other celebrities who have “pedaled to power” this year include Top Chef All Stars’ Carla Hall, comedian Aasif Mandvi, socialite Tinsley Mortimer, designer Richie Rich, stylist Robert Verdi and many more!

…even MJ took a turn! MJ pedaled for positivity!

Are you on Twitter? Follow @KyleRichards18 and @MicahJesse!

PHOTO: Stuart Ramson

Designer Richie Rich, socialite Tinsley Mortimer, stylist Robert Verdi, and media personality Carson Kressley pose for a “HOT SHOT!” with Santa to help celebrate the holiday season on Thursday (Dec 9) in NYC’s Meatpacking District.

The starlets donated their time and energy at the Duracell Smart Power Lab, where human-generated power is collected to help light up the 2011 numerals in Times Square on New Year’s Eve!

Love this shot! Full of life and holiday cheer! Now, someone get MJ a beer!

Designer Richie Rich loves his blonde-haired “muses” and in the past he’s had a slew of platinum-locked celebs walk in his runway shows, including Pamela Anderson, heiress Lydia Hearst, and the most famous tranny in the world…Amanda Lepore!

But this Fashion Week… Richie stepped it up in a major way, dancing down the catwalk at the end of the show with none other than talk show host Ellen Degeneres!

[Yes...that's MJ cheering on Richie Rich and Ellen from the front row!]

Stay tuned for backstage footage!

PHOTO: Micah Jesse & Richie Rich (Credit: Moises de Pena)

MJ ran into his friend, glam god man-about-town Richie Rich, at the Bravo premiere of “Double Exposure” at The Angel Orensanz Foundation this week.

Always refreshing seeing RR — a true party monster!

Singer Mary J. Blige and designer Catherine Malandrino held an autograph signing at Bloomingdale’s on 59th Street in NYC on Wednesday (Feb 17) where hundreds of fans were able to get a black and white photo (or a limited edition t-shirt) signed by both Mary and Catherine!

Hush hush couple AnnaLynne McCord and Kellan Lutz were both spotted at the Nintendo DSi Studio at the Bryant Park Hotel on Tuesday (Feb 16).

On Saturday evening, reality star Caroline Manzo (of Real Housewives of New Jersey) was spotted dining at STK NY with publicist Jonathan Cheban, who is soon-to-be a reality star himself when his show “SPINdustry” debuts on E!

Ryan Phillippe, Josh Lucas and Sophia Bush rocking out to the live Guns N’ Roses performance at Gramercy Park Hotel’s Rose Bar Sessions on Valentine’s Day.

P.Diddy‘s blonde-locked mother Janice Combs sat front row at designer Richie Rich‘s Fashion Show at Amnesia nightclub on Wednesday (Feb 17) where Pamela Anderson, socialite Tinsley Mortimer, America’s Next Top Model winner Caridee English and football star Terrell Owens walked in the show!

Nicole Richie was spotted dining at Abe & Arthur’s in NYC after announcing her engagement on the Late Show with David Letterman.

Rocker Tommy Lee took over house night at Blush Boutique Nightclub on Wednesday (Feb 17) at Wynn Las Vegas to host the King Baby Studio grand opening after-party. Lee showed up to the hotspot shortly after 11 p.m. with his girlfriend, German-born singer Sofia Toufa, and a bright red lip print on his cheek.

Jersey Shore’s Angelina was spotted taking pictures with fans at Indashio‘s Fall 2010 Runway show at Tenjune on Thursday (Feb 18) in NYC.

The two-day Beauty Bar suite at Townhouse Spa in NYC catered to quite a few celebrity guests including Adrienne Bailon (who opted for a manicure, a bag of PopChips and a Cafe Bustelo beverage), Vinnie from the hit MTV show Jersey Shore, E! News correspondent Ben Lyons, and more!

Wesley Snipes kept it low-key on Wednesday (Feb 13) at Gerber Group’s Whiskey Blue in Atlanta. Dressed in all black head to toe, the action star sipped on Martinis with a splash of cranberry with his lawyer and a group of friends.

Taking a break from Mercedes-Benz Fashion Week, models Molly Sims and Selita Ebanks were spotted getting the Biolustré treatment at the Ricardo Rojas Salon in New York over the weekend.

Veteran rocker Ozzy Osbourne ordering a Chicken Caesars Salad minus the cheese, croutons and traditional Caesar dressing on Wednesday night at Society Café Encore. Osbourne substituted in balsamic vinaigrette for dressing. On Tuesday (Feb 15) daughter Kelly Osbourne was spotted dining at NYC hotspot STK before heading down to party with a big group of friends at Tenjune nightclub. Also at Tenjune was actress Mena Suvari with her fiance, partying and drinking champagne.

Dancing with the Stars pro Mark Ballas and his girlfriend, former American Idol contestant Joanna Pacitti, enjoyed a romantic Valentine’s dinner at LAVO Las Vegas on Sunday night (Feb 14). The pair indulged with Shrimp Cocktail, Prosciutto, the famed Kobe Meatball and a one pound lobster, along with Pinot Noir paired to the meal.

Photos: Retna Digital

Micah Jesse has this one… FIRST!

A fly on 5th Avenue tells MicahJesse.com exclusively that pop music icon Rihanna will be headlining designer Richie Rich‘s fashion show on Thursday (Feb 18) at New York Fashion Week this month.

Whether or not she is performing or walking is still TBD.

Other RR regulars expected to attend (and participate?) include Pamela Anderson, America’s Next Top Model winner Caridee English, and the ever so boob-a-licious Aubrey O’Day.

Looks like Mister Rich is gearing up for a seriously showstopping fashion show!

UPDATE: A rep for the show tells MicahJesse.com that Rihanna is “definitely not confirmed.”