Two Irish stars of music and sport came together this Christmas
The pair are old friends with Nicky's love of football well documented throughout the years, and both are dedicated family men.
Byrne, who was kicking off the Christmas season at 37 Dawson Street, tweeted the photo, along with the caption: "U never know who you'll meet in @37DawsonStreet."
The Byrnes recently celebrated the latest addition to their family with baby Gia and the Keanes are back home on Irish soil while the LA Galaxy star recovers from an Achilles heel injury.
"She's the most beautiful little thing I've ever met," he said of his newborn daughter.
"We're absolutely delighted with her. She's so placid and calm. We absolutely adore her and so do the boys.