Chinese pop singer Yao Beina died today in Shenzhen after a long battle with breast cancer, her manager Bo Ning confirmed. She was 33.

Chinese pop singer Yao Beina [File photo]

She was in critical condition due to the worsening of the cancer, her management team said earlier today. Yao was rushed to the intensive care unit at a local hospital in Shenzhen on Thursday, Yuan Tao – the general manager of her label, Huayi Brothers Music – said on Friday afternoon.

Some online posts said that Yao was already "dead" on Wednesday. Yuan denied the rumor but said that Yao's condition is indeed bad and she is not yet out of danger. He reported that Yao was in a coma due to the large amount of sedatives she had received for treatment.

When she was awake on Jan. 9, Yao signed an agreement to donate her cornea if she dies, the manager said.

As doctors tried to save her life, her father said he wanted to ask them to take his daughter off life support and let her leave in peace. It was reported the cancer has spread to her brain and lungs.

News of her critical condition dropped like a bomb online, and many were shocked. Tons of messages wishing her the best were posted online.

Yao was born on Sept. 26, 1981 in Wuhan, the capital of Hubei. She won the award for best pop song performance at China Central Television's Young Singer TV Grand Prix in 2008. She has also sung several theme songs for hit movies and TV series, including the TV drama "The Legend of Zhenhuan," Feng Xiaogang's "Back to 1942" and the Chinese version of "Let It Go" from Disney's "Frozen." Her popularity received a boost from the Chinese reality talent show "The Voice of China" in 2013.

Yao was diagnosed breast cancer in April 2011, and she has performed much less frequently ever since. Her last post on her micro blog states, "I have been staying in bed for a month. I feel so oppressed, and I want to sing. Hope I can get well soon and smile a big smile. Don't worry fans, I can get well, and I will be fine."

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