(Photo by Jahi Chikwendiu/The Washington Post via Getty Images)

Viral TikTok musician Cat Janice died on Wednesday following a battle with cancer.

She was 31.

Janice was diagnosed with sarcoma, a rare type of cancer that develops "in the bones and soft tissues, including fat, muscles, blood vessels, nerves, deep skin tissues and fibrous tissues," John Hopkins Medicine defines, that affects the lungs. After undergoing treatment, the mother of one beat the cancer in 2022. However, a couple months later, the disease returned.

"Just found out a couple weeks ago and I've been processing it," she began. "But, it's back. And it's all in my lungs and it's just very poetic in a way, that it would come back now," she said in a TikTok video.

The goodbye song, "Dance You Out of My Head," which she released one day before her 31st birthday, went viral. She asked that all proceeds from the legacy song be sent directly to her only son, Loren, 7.

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She later learned that the feel-good track went on to chart at No. 7 on iTunes and made it to No. 1 in Romania, Ireland, and the Czech Republic. The song reached No. 12 in the United States.

The singer, who documented her journey via TikTok, sent a message to her fans saying she looks forward to listeners moving to the music.

"I hope you guys are enjoying it and having a ton of fun, and dancing...because I'm in my hospice bed, and that's okay because you guys are making me so happy," she said in a video recorded from her hospice.

Janice's family announced her passing in a post via Instagram, mentioning how thankful they were for all the support, and that the page will be memorialized by her brother.

A post shared by instagram

"This morning, from her childhood home and surrounded by her loving family, Catherine peacefully entered the light and love of her heavenly creator," the family began. "We are eternally thankful for the outpouring of love that Catherine and our family have received over the past few months. Cat saw her music go places she never expected and rests in the peace of knowing that she will continue to provide for her son through her music."

"This would not have been possible without all of you," the statement continued. 

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According to 'USA Today,' before her diagnosis in 2021, the D.C singer won the Washington Area Music Award in the Best Rock Artist music category in 2019. She also received the Robert Allen Award from the ASCAP Foundation last year.

In a statement to PEOPLE in January, the Tiktoker said her "art is all I have to leave behind."