Jennifer Aniston played dress-up for the latest issue of Harper's Bazaar -- and transformed herself into Barbra Streisand to showcase some of Babs' most famous looks.

Of her icon, Aniston says "Barbra inspires me because there isn't anything she hasn't done that she wanted to do, especially as a female in the time when her generation was prime. She's a true renaissance woman."

Jen also tells the mag, "People laugh at me. Sometimes I know why, and sometimes I don't. But I can pretty much find humor in anything. That is a necessary part of life. I don't want to say laughter is healing, because it sounds corny, but it's a release."

Read more when the September issue hits newsstands.

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