Story By: Sofija Dizdarevik, Sub Editor: Joseph Golder, Agency: Central European News Video Credit: CEN/@maria_official_bulgaria One of the Bulgaria's top pop stars has been slammed after posting a video of her 11-year-old daughter at a beautician's. Maria Panayotova Kirova, the 37-year-old pop star best known as simply Maria, took her 11-year old daughter Maraya to a…