Christian Mach, 15, is a 9th grade cheerleader at Ennis High School. She's been by her sister's side through her battle with cancer.
The two sisters have decided they are going to shave their heads.
Christian joined Stand Up 2 Cancer this year with her sister and together they will donate their hair to the non-profit Children With Hair Loss.
To help Christian Mach answer her call to be a hero, you can click here to help her raise money to fight cancer.