Dancers take part in a St Patrick's Day parade in Central London on March 16, 2014. Some 400,000 people are expected to line the streets of Dublin on March 17 for the annual Saint Patrick's Day parade. The parade is the culmination of a weekend of festivities in the Irish capital and across the country to celebrate Ireland's national holiday. AFP PHOTO / ANDREW COWIE
A float passes through during St Patrick's Day parade in Central London on March 16, 2014. Some 400,000 people are expected to line the streets of Dublin on March 17 for the annual Saint Patrick's Day parade. The parade is the culmination of a weekend of festivities in the Irish capital and across the country to celebrate Ireland's national holiday. AFP PHOTO / ANDREW COWIE
A baby wears a green wig during the St Patrick's Day parade in central London March 16, 2014. REUTERS/Olivia Harris (BRITAIN - Tags: ANNIVERSARY ENTERTAINMENT SOCIETY)