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CloseCéline Dion has made a "childhood dream come true" for a young fan waiting outside the star's hotel in Paris, ahead of a much-anticipated comeback show on Saturday.
The 20-year-old, who goes by the social media name 'Sacha', asked the pop start to duet with him.
Initially Céline Dion declined, but then couldn't resist joining in.
"You are such a good singer," the Canadian performer exclaimed.
Dion - who was diagnosed with an incurable condition four years ago, that affected her singing voice - has regularly interacted with fans lined up outside her hotel.
When she announced the tour via an Instagram post in March, she said "I'm so ready to do this".
Read more: Céline Dion announces comeback shows: 'I'm so ready for this'
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