Comedian Russell filed for divorce from his popstar wife Katy at the end of last year, citing "irreconcilable differences" as the reason.
In a statement, the 36-year-old said:
"Sadly, Katy and I are ending our marriage. I'll always adore her and I know we'll remain friends."
News of the split came following months of press speculation about the couple.
They first got together in 2008 and married in 2010 in a ceremony in India.
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