Actor Colin Farrell arrives to the premiere of FilmDistricts's 'Dead Man Down' at ArcLight Hollywood on February 26, 2013 in Hollywood, California. (Photo by Kevin Winter/Getty Images)
Roma Downey
Actress Roma Downey arrives at the 2011 MTV Movie Awards at Universal Studios' Gibson Amphitheatre on June 5, 2011 in Universal City, California. (Photo by Jason Merritt/Getty Images)
Van Morrison
Irish blues and rock singer Van Morrison performs on the stage of the Olympia concert hall in Paris, on September 14, 2012. (THOMAS SAMSON/AFP/GettyImages)
Sir Bob Geldof
Sir Bob Geldof attends the Sports For Peace Fundraising Ball at The V&A on July 25, 2012 in London, England. (Photo by Ian Gavan/Getty Images)
Pierce Brosnan
Actor Pierce Brosnan attends 'Love Is All You Need' Premiere at The 69th Venice Film Festival on September 2, 2012 in Venice, Italy. (Photo by Vittorio Zunino Celotto/Getty Images)
Sinead O'Connor
Musician Sinead O'Connor performs at the Highline Ballroom on February 23, 2012 in New York City. (Photo by Jason Kempin/Getty Images)
Michael Flatley
Irish step dancer Michael Flatley poses in front of the placard for the new 'Lord of the Dance' tour on June 10, 2010 in Munich, Germany. (Photo by Alexandra Beier/Getty Images)
Liam Neeson
Actor Liam Neeson attends The American Theatre Wing's 2012 Annual Gala at The Plaza Hotel on September 24, 2012 in New York City. (Photo by Jemal Countess/Getty Images)
Andrea Corr
Musician and actress Andrea Corr poses for a portrait during the 64th Annual Cannes Film Festival on May 12, 2011 in Cannes, France. (Photo by Andreas Rentz/Getty Images)
Bono
Singer Bono arrives at the 21st Annual Elton John AIDS Foundation's Oscar Viewing Party on February 24, 2013 in Los Angeles, California. (Photo by Frederick M. Brown/Getty Images)
John McEnroe
John McEnroe of United States in action during the Legends Final between John McEnroe of United States and Mats Wilander of Sweden during the Statoil Masters Tennis at Royal Albert Hall on December 9, 2012 in London, England. (Photo by Paul Gilham/Getty Images)
Peter O'Toole
Actor Peter O'Toole speaks during a Hand and Footprints Ceremony presented by the TCM Classic Film Festival at Grauman's Chinese Theater on April 30, 2011 in Hollywood, California. (Photo by Frederick M. Brown/Getty Images)
Ronan Tynan
Irish tenor Ronan Tynan sings prior to Pope Benedict XVI Mass at Yankee Stadium in New York, April 20, 2008. Benedict was to celebrate Mass for 55,000 people at Yankee stadium before departing the US Later April 20. (MIKE SEGAR/AFP/Getty Images)
Enya
Irish singer Enya poses on November 7, 2008 in Madrid during the presentation to the press of her new record 'And winter came'. AFP PHOTO/Pedro ARMESTRE. (Photo credit should read PEDRO ARMESTRE/AFP/Getty Images)