Twin Fest double trouble at Keash
27 August 2013 Last updated at 16:42 BST
You could have been forgiven for thinking that you had double vision if you were in County Sligo this weekend.
Twins, triplets and quadruplets from all over Ireland flocked to Twin Fest in the village of Keash, many were dressed in matching outfits.
BBC Ireland Correspondent Chris Buckler reports.