"I was just saddened with the news that this beautiful young lady passed today. I've been following her for well over a year. Found her on the popular page right here on Instagram. Her love for make-up, taking pictures and her positivity always kept me smiling. My prayers go out to her family and other little girls like herself." Singer Christina Milian pays tribute to YouTube.com sensation Talia Castellano, who lost her battle with cancer on Tuesday (16Jul13) at the age of 13.