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Talk about life imitating art! Sarah Paulson stopped by Stephen Colbert's "The Late Show" on March 31 to talk about the upcoming finale of her FX series "The People v. O.J. Simpson."

While discussing her eerily accurate transformation into lead prosecuting attorney Marcia Clark, Sarah confessed that she picked up a very bad health habit while emulating the woman.

Since Marcia had a well documented affinity for cigarettes, smoking played a large role in acting as the character. But it was something that Sarah was not familiar with offscreen, as she explained, "I don't smoke at all in life."

When Stephen asked whether it was difficult to pick up that activity, Sarah admitted she was not a natural. "When we first started I was coughing a lot, eventually I started to be like... I was ready for a smoke."

The role gave her a real addiction to cigarettes, as she shared, "It got me a little crazy for the ciggies."

But it wasn't just portraying Marcia that was to blame for her new unhealthy vice. "I also smoke in American Horror Story and I was shooting them at the same time so it was a real situation."

It looks like her dedication to her craft paid off. For her part, Marcia has been vocal about her praise of Sarah. Back in February she told Entertainment Weekly, "In life, you never know when something good is going to come out of something horrendous. It was one of those," she said, of Sarah portraying her on the show. "When I found out that she was going to play me, I thought, if this has to happen, then the honor is huge. I've been a fan of hers for years. I just love her."

Of the physical likeness Sarah pulled off for the role, Marcia also gave her stamp of approval. "I think she looks better than I ever did," the former attorney admitted.

The two met up prior the show airing, and Sarah told Ellen Degeneres in March that the meeting consisted of a "lot of tequila." The actress confessed to the talk show host that she was elated to meet the person she'd been studying up on for so much time, and that coming face-toface resulted in, "a lot of weird sort of squealy pig noises because I was so excited."