Big news for Litchfield! Mary Steenburgen announced on twitter today that she will be joining the cast of "Orange is the New Black." How exciting!

"Very excited to go to my first wardrobe fitting of OITNB! Will I be in orange or black?:)" she wrote.

No details have been released yet on her role. Season two debuted on Netflix last Friday and season three is already in production.

Season three already sounds as promising as the first two. We told you on Wednesday Laura Prepon promises to appear as Alex Vause in every episode.

"Netflix doesn't do the standard contract of blocking you off for a few years, so I had a conflict come up," she said on The Today show on Tuesday.

"It's since been handled and we've started season three and I'm in every episode. I'm so bummed that I wasn't in season two more. Sorry you guys! But season three, we're already shooting and it's going to be awesome."

She also praised creator Jenji Kohan and the quality of the show.

"I honestly don't think there is another show on television right now which has as many strong, independent female characters," the former "That '70s Show" star stated. "Netflix is awesome because we totally push the envelope."

"[Creator] Jenji Kohan - nothing is taboo for her - we go there - and our viewers are smart they want compelling TV and now it's more competitive than ever."

"I got one of the scripts and I was like 'Oh my God.' It's also so exciting because that's when you grow as an actress when you're totally out of your comfort zone," she continued.

Steenburgen won an Oscar for her role in "Melvin and Howard." She recently appeared on "Justified," "Wilfred," and "30 Rock." The actress was also seen in "Bored to Death" alongside her husband Ted Danson.

Do you think she will be an asset to the show? Let us know why or why not below.