Taylor Swift and her adorable mum Andrea Swift in April. Source: Getty Images TAYLOR Swift had an emotional moment onstage Monday night during the Glendale, Arizona, stop on her 1989 World Tour. In 2012, the philanthropic pop star debuted a song titled Ronan, which she wrote for a child named Ronan Thompson who died from neuroblastoma at the age of three. Swift, 25, got to know the boy and his family through his mother Maya Thompson’s blog. Attending Monday’s concert [...]