As her four-part reality show “Totally T-Boz” comes to a close, Tionne “T-Boz” Watkins debuts her empowering song “Champion.” The TLC alum provides words of encouragement (“Any war you can win if you stay strong/ Baby, you’re a champion”) as she sings in her raspy voice. Proceeds from the sale of the single, which is now available on iTunes, will benefit sickle cell and leukemia foundations.