The couple - who split in 2012 after seven years of marriage - got the chance to work together as the "Kiss From a Rose" hitmaker was a special guest on the talent show, which is judged by Klum, reported People magazine.
Speaking about joining Heidi, Simon Cowell, Mel B and Howie Mandel on the panel, Seal said, "I was thrilled to be part of what has become America's favourite TV show. I've been an admirer of Simon's ever since we both lived in England, and to work beside him was both a privilege and an education."
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