Singer Sami Yusuf is one of the biggest superstars in the Muslim world. He's eyeing up success in the mainstream market, but can he compete in an industry that makes profit from stars like Lady Gaga? Show more
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Singer Sami Yusuf is one of the biggest superstars in the Muslim world. He's eyeing up success in the mainstream market, but can he compete in an industry that makes profit from stars like Lady Gaga? Show more
The BBC's international radio station
