Today’s celebrity rundown (14 photos)

Rob Kardashian said he gained 40 lbs in TWO months. He turned to food and random sex after his split with Rita Ora.

“All I did was waste a lot of money and gain 40 pounds,” Rob said. “I need to focus on me. That’s all I wanna be about.” -source

The ‘Les Mis’ cast will perform at the Oscars! The performers include Russell Crowe, Hugh Jackman, Anne Hathaway, Amanda Seyfried, Eddie Redmayne, Aaron Tveit, Samantha Barks, and Helena Bonham Carter from this year’s Les Misérables.

Jennifer Hudson from ‘Dreamgirls’ and Catherine Zeta-Jones from ‘Chicago’ will also be performing. -source

Michelle Williams is officially growing out her hair!

She confessed to E! “I think I’m ready. It’s on its way, slowly but surely,” the 32-year-old actress says in a video interview. “[The transition is] why I’ve stayed with short hair for so long. The mid-stage is insufferable. It’s really hard on your self-esteem.”

Kristen Wiig joins the ‘Arrested Development’ revival. She is scheduled to make an appearance “as the younger version of Jessica Walter’s boozy matriarch Lucille Bluth.” -source

Chris Hemsworth attended the 2013 Foxtel launch in Sydney, Australia today. Yup, he is smokin’ hot.

Monica and Chandler reunite! Courteney Cox is set to appear on Matthew Perry’s show ‘Go on.’

“Courteney will play a character who is set up on a date with the grieving widower played by Matthew,” revealed a friend of the stars. “She’s scheduled for only one epi­sode so far, but if viewers tune in, Courteney could be brought back for more. She’s throwing Matt a Hail Mary pass to save his show, and he knows it.” -source

Josh Duhamel and Julianne Hough showed up to the London, England, ‘Safe Haven’ premiere. Julianne rocked a Bec & Bridges rouge Vida jumpsuit.

Robin Roberts returned to ‘Good Morning America’ this morning! After a 5 month recovery from her bone marrow transplant, she is back. Check out more photos of her return at Socialite Life!

LeAnn Rimes and Eddie Cibrian bought a new Hollywood mansion. They only had to cut a check for $3 million, too. That’s pretty cheap for the size and location of that place.

Rihanna is teaming up with MAC Cosmetics for a new product line.

Rihanna told WWD, “When you think of makeup, the brand that pops into your mind — for something legit — is MAC. Whatever color you want, it’s like ‘Let’s go to MAC.’ I’ve been using MAC on tour for such a long time it was a natural fit for me. I have always loved makeup, and I always said that if I do it, I want to do it with a credible brand.”