Siwa reached out to a fan who was diagnosed with cancer some moments before her surgery.

Blakely was on a ski trip with her parents when she started feeling ill.

Her parents, Jason and Kimberly, took her to a pediatrician in Los Angeles.

She was rushed to Los Angeles Children's Hospital where she was diagnosed.

The doctors performed a successful tumor-removal operation on Blakely.

Siwa knew about Blakely's condition from her parents' close friends, Kira Girard, and her husband.

She offered to help the Bergenfelds clear their medical bills.

JoJo Siwa signed with Nickelodeon in 2017.

Ever since her affiliation with the American satellite TV channel, she has won four awards from their Kids' Choice Awards.