Contortion artists perform during the Cirque du Soleil's Kooza show in Madrid, in this file photo taken February 28, 2013. Founder Guy Laliberté has agreed to sell control of Cirque du Soleil, the world's largest theatrical production company, for about $1.5 billion, the Globe and Mail reported, citing sources familiar with the matter. (Photo by Sergio Perez/Reuters)
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