Julia Louis-Dreyfus is 'NOT F---ing Around,' Thanks Katy Perry for Inspiration After Second Round of Chemo

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Julia Louis-Dreyfus arrives at the 69th Primetime Emmy Awards Audi pre party at The Highlight Room on Sept. 14, 2017 in Los Angeles.

Julia Louis-Dreyfus revealed to Instagram on Thursday (Oct. 19) that she was done with her second round of chemotherapy. Or, in her own words, "finito." 

The Veep actress, who announced in late September that she was suffering from breast cancer, is visibly in high spirits even in this tough time. In the post, Louis-Dreyfus is shown with a magic marker mustache, aviators, and black hoodie, giving her best grimace to the camera. 

She added Katy Perry's "Roar" lyrics to her message, "We are NOT f---ing around here. 'I've got the eye of the tiger. The Fighter dancing through the fire cuz I am a champion and your're going to hear me ROAR.'" Later in the message, she tagged Perry along with actors Timothy Simons and Tony Hale, and thanked them, "for their hilarious and loving inspiration."

Louis-Dreyfus was positive even when she announced her diagnosis to Twitter last month. After she listed a statistic, the actress added, “The good news is that I have the most glorious group of supportive and caring friends, and fantastic insurance through my union. The bad news is that not all women are so lucky, so let’s fight all cancers and make universal health care a reality.”