单选题
A superstar usually is someone who has become famous in sports or popular music, someone like folk (人们，民间的)
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Michael Jackson.
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the middle of 1980"s Michael made a record album (相片册，邮票簿)
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"Thriller (激情)". It quickly became the most
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recording in the history of music and it made Michael Jackson a
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.
The word "super" means
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that is extremely good. And of course, a
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is a person who is famous. So people use "superstar" to describe the
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people in sports, acting and
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.
One of the most famous sports superstars in the United States
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boxer Muhammed Ali.
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a young man, he won a
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medal (奖章，纪念章) in the Olympics as a boxer.
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he became the heavy-weight boxing champion of
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.
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long, he was known as one of the greatest
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most famous boxers in sports
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.
Muhammed Ali claimed
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he was a champion that he was more famous than the president of the United States, the
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of the Soviet (苏维埃) Union,
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the secretary-general of U.N. He is a true superstar. Everyone knows his name.