Andersen couldn't give performances because his voice changed.

安徒生不能表演了，因为他的声音变了。

youdao

He was as popular a solo act as he was a band member - almost uniquely for a child star, he retained his popularity even when his voice changed.

他在个人表演上的受欢迎度，比起在乐队时毫不逊色，而在变声后仍然维持着高人气，这对于童星来说更是绝无仅有的。

youdao

At 14, he moved to Copenhagen to become a singer. However, after his voice changed, a director at the Royal Theater arranged for Andersen to go back to school.

十四岁时，他搬到哥本哈根，成了一位歌手。不过在安徒生变声之后，皇家剧院的一位导演便安排安徒生回学校念书。

youdao

He told an interviewer in 2008 that he was replaced when his voice changed too much after he turned 14.

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Then his voice changed.

NEWYORKER: Beginners

Even his voice, the tone of his voice, seemed to have changed.

NEWYORKER: ?lvaro Rousselot��s Journey