Rory McIroy is tying the knot with his fiancee Erica Stoll today at Ashford Castle in Co Mayo.
Dozens of stars from the world of sports and entertainment are attending the celebrity wedding.
Niall Horan, Ed Sheeran and Coldplay's Chris Martin are said to be attending.
Fellow golfers Padraig Harrington, Sergio Garcia and Shane Lowry are also on the invite list.
And the couple won't be having a wedding band... Stevie Wonder has been flown in to play for guests.
The soul legend popped in to a computer store in Galway yesterday and staff couldn't pass up the chance for a selfie.
Security is tight at Ashford Castle, and the quiet Mayo village of Cong has been inundated with reporters covering the event.
Looking like it's shaping up to be another lovely day here in Cong for Rory McIlroy's wedding. What a location! pic.twitter.com/lJGUrEycjD
— Claire Gorman (@clairemgorman) April 22, 2017
I'm reporting from Rory McIlroy's wedding at Ashford Castle in Cong, Co Mayo in the 530 news @3NewsIreland #RoryMcIlroy pic.twitter.com/YGkDZ5eXs7
— Michael Ryan (@MichaelRyanTV3) April 21, 2017
