For months, Irish post-punk greats Fontaines D.C. have been touring behind their much-esteemed new album Romance, but they haven’t been performing one of its prettiest songs until very recently. The band spent a very long time tinkering with “Desire,” experimenting with different ways to record the song before landing on the string-section version that they included on the LP. This past weekend, they played the song live for the first time.