Real Housewives of Beverly Hills alum Teddi Mellencamp shared a glimpse of her newly shaved head in a health update, three weeks after undergoing emergency surgery to remove tumors from her brain.

Just the mention of childhood cancer can be enough to elicit gut-wrenching heartache and a feeling of helplessness.

A tradition that has been taking place for nearly two decades continues on Friday as more than 100 students and teachers in Colorado Springs are expected to shave or cut their hair.