Westlife's Shane Filan and his wife Gillian celebrated their 20th wedding anniversary in style, returning to the place where they tied the knot. The couple got married on December 28, 2003, at Ballintubber Abbey in Ireland, followed by a beautiful reception at Ashford Castle in County Mayo.To mark their two decades of marriage, they returned to Ashford Castle for a grand celebration. Shane shared some lovely photos from the evening on social media.