Singer Will Young has criticised comments made by Cardinal Keith O'Brien of the Catholic Church over the government's plans to legalise gay marriage.

Cardinal Keith O'Brien, the leader of the Catholic Church in Scotland, had said the government's plans for gay marriage were a "grotesque subversion of a universally accepted human right" and said they would "shame the United Kingdom" .

He told the Today programme's John Humphrys that likening gay marriage to slavery is "a very good example" of what could follow on from the change in the law.

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