Talia Joy Castellano (August 18, 1999 – July 16, 2013) was an American internet personality and model who was best known for her work on YouTube, notably her makeup and fashion content, and for becoming the first honorary CoverGirl in 2012.

When an X-ray on February 14, 2007 showed unusual anatomical displacements in her chest, she was diagnosed with neuroblastoma, a rare pediatric cancer of the peripheral nervous system.

Subsequently, Castellano, along with her father, Marc Winthrop, co-founded a charity, Band of Parents, focused on her wish to find a cure for neuroblastoma.

Back at the time of her death, friends and family of Castellano posted pictures of things she wanted to do as part of her bucket list, such as getting a tattoo and having "a huge water balloon fight.

"[16] Castellano's YouTube channel and Twitter are now controlled by her elder sister and mother, with occasional updates, videos, and promotions.