Placido Domingo
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Tenor Placido Domingo: 'If I rest, I rust'

Opera singer Placido Domingo is preparing to perform to an audience of thousands at the O2 Arena in London.

In a 50-year career, he has performed over 3,500 times and won 12 Grammy Awards, saying his motto is, ''if I rest, I rust''.

The BBC's Louise Minchin reports.