Yao Beina was not only a popular singer but also an energetic and warm-hearted angel. She  donated her corneas to two men after her death. Yao was born in a music family in September 1981 in Wuhan. She started to learn music at the age of 4,  and  she sang her first song on the stage when she was 9. Yao did quite well in singing, so she took part in the 13th  Youth Singing Competition and won the first prize. She became well-known to the pubic after making some songs for the hit TV drama The Legend of Zhenhuan , and the mandarin version of Let It Go from Disney's Frozen . In July  2013, she competed in The Voice of China II and finally got the second place in Na Ying's team. She had won  many music prizes. Yao Beina was unlucky to be diagnosed with breast cancer . She had a successful operation in 2011. She has fought against the illness for about four years while keeping singing, but sadly she failed. Although she's gone, her fans will remember her beautiful voice and kindness forever. How old was Yao Beina when she started to learn music?
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