Celeb Sightings: Carmen Electra Dresses Up As Katy Perry For Halloween

Carmen Electra

Carmen Electra channeling Katy Perry’s “California Gurl” with a  scrumptious cupcake bra and electric blue hair for SVEDKA Vodka’s Halloween Soirée in L.A.

Bachelorette alum Desiree Hartsock celebrating her own bachelorette party on the High Roller at The LINQ Promenade followed by a performance of Britney: Piece of Me in Las Vegas.

Lea Michele and boyfriend Matthew Paetz sharing an order of Irish Nachos and sipping on beers at the bar at Rock & Reilly's on the Sunset Strip in West Hollywood.

Jesse Tyler Ferguson celebrating his birthday with a cupcake and husband Justin Mikita during their trip to the city to promote Tie Bar at RPM Italian in Chicago.

–RHONY’s Heather Thomson and crisis manager Wendy Feldman laughing and catching up backstage at CBS studios in L.A.'s Studio City.

–Olympic figure skater Jason Brown surprising a 6-year old cancer patient and her sister from Ronald McDonald House with two of the stuffed animals he received from his fans at the Lurie Children’s Hospital in Chicago.

Mary J. Blige wowing the crowd appearing as a surprise guest at The FADER FORT Presented by Converse, a three-day showcase at Brooklyn’s Converse Rubber Tracks, in Brooklyn, N.Y. 

Ryan Cabrera hinting at a new album release at the Disaronno Terrace at The Aventine in L.A.

–Singer K. Michelle wearing a MT Costello gown shooting her new music video “AWBAH" in L.A.

Daniel Radcliffe goofing around with castmate Juno Temple during the Cinema Society party for Horns hosted by RADiUS at Jimmy at the James Hotel in NYC.

Jena Malone admiring the tailoring out loud during a presentation of GANT Rugger's new collection at Chateau Marmont in L.A.

Sting celebrating the opening night of his musical "The Last Ship" with with friend Bruce Springsteen at a private party at Victor's Café in NYC.

Adrienne Maloof attending Linda's Voice charity fundraiser – which featured a lingerie runway show by Kiki De Montparnasse and couture jewelry by Margaret Rowe – at a private residence in L.A.’s Bel Air neighborhood.

Jamie Chung, Joe Zee, and Catt Sadler teaming up for a Simply Stylist beauty conference at the Park Central Hotel in NYC.

–Actor Mikey Roe checking out his film The Houses October Built – now available on VOD, iTunes, Vudu, Amazon, and Google – with friends at AMC Theatres in Burbank, CA.

Heather McDonald getting pampered at Kalologie 360 Spa with their Signature Kalologie Facial in L.A.’s Brentwood neighborhood.

Bridget Marquardt getting a Wizard and costumes for her pets from Rubie's Costume Company in L.A.

Charli XCX, Bella Thorne, and LGBT advocate Tyler Oakley taking over Aspire Pacific Academy‘s Homecoming in Los Angeles where they hosted, performed, and danced with students to celebrate the launch of Ubisoft’s new game, Just Dance 2015.

Chord Overstreet sipping on Freixenet Sparkling Cava at Matthew Morrison's 5th Annual Halloween Party in L.A.

Modern Family's Nolan Gould giving a shout out to TV mom Julie Bowen before accepting an ACTivist award at ACT Today!'s 9th Annual Denim & Diamonds for Autism in Woodland Hills.

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