"And where did you get to in the end?" asked Mason.
"We got to Broadway,' Laura laughed. "We got to a good time. We got to where it's all about the joy."
On Broadway now, Mary Bridget Davies is bringing back the spirit of Janis six nights a week.
"There's a lotta mojo in this house," Davies said. "And it feels so intimate. Saturday night, this woman was standing here in the front row. And I finished 'Ball and Chain,' and got a standing ovation. And I just nodded to her like, 'Thanks.' And I just grabbed her hand and she lost her mind."
"What's the most difficult part about doing this every night?" Mason asked.
"Being as believable to the audience as possible," she replied.
"It's a pretty big goal."
"It's huge. But she was, too. And I have to honor her that way."
When asked how it feels to be in charge of Janis' legacy, Laura said, "Janis means a lot of things to a lot of people. And it's important to allow her to have her own identity."
"How do you do that?"
"By not defining her," Laura Joplin said.
Even Janis herself couldn't define it:
Interviewer: "Do you have any explanation why you're so popular?"
Janis Joplin: "(roars with laughter)"
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