Ceremony ends with Olympic flame lit and Celine Dion’s performanceCeline Dion has returned to the stage for the first time since revealing a serious health condition, delivering a typical powerhouse performance at the Paris Olympics opening ceremony.The Canadian superstar had been rumoured to be singing a duet with Lady Gaga, but instead went solo on the Eiffel Tower to bring the four-hour event to a stirring climax.It was Dion’s first live performance for four years, and came a year and a half after she revealed a diagnosis of Stiff Person Syndrome (SPS).SPS is a rare neurological disorder that causes muscles to spasm and can be debilitating. It also affected her distinctive forceful voice. ShutterstockCeline Dion performed on the first level of the Eiffel TowerThe 56 year old, known as the “queen of power ballads”, has been having therapy to “rebuild” her voice, as she told the BBC in June, and help her sing again.On Friday, her delivery of Edith Piaf’s classic L’Hymne à l’Amour…
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