6-year-old Anya Ottley suffers from a rare form of kidney cancer called Wilms' tumour. But this little fighter isn't letting a small thing like cancer hold her back from anything.

Her mother says, "She even takes the chemotherapy in her stride. It makes her sick but she tells me it's not too bad for her and that other children on the ward are much sicker. She is really caring like that."

As Anya gets ready to undergo mutliple rounds of chemotherapy, her mother told her that at the end she would have a 'ring-the-bell' party to signify that she was better. Anya was so excited at that idea that she said she wanted to sing 'Fight Song' at the party.

When she attended a wedding recently, Anya thought that would be the perfect time to practice the song in front of an audience. Her uncle caught the entire moment on camera and it's absolutely amazing to witness. This little fighter is belting her heart out and it's giving me all the feels.

She may be young, but Anya has the spirit of someone much older. She has been such an inspiration to those around her and now the whole world is getting to see this incredible young girl.

I can't wait to see the video of Anya singing this song at the end of her treatment. Who else is with me?