Flight of the Conchords, aka Jemaine Clement and Bret McKenzie, are in NYC promoting their upcoming HBO special, Live at the Hammersmith Apollo, and stopped by The Late Show with Stephen Colbert on Monday night to chat and to perform a new song, "Father and Son," which is a Conchordian take on a "Seasons in the Sun" type weepy parental folk number. You can watch that and their time on the couch below.

Live at the London Apollo airs October 6 on HBO (watch the trailer below). Bret and Jemaine didn't reveal any upcoming plans for FotC, but Clement is busy with his American What We Do in the Shadows spinoff series and will talk about it (with co-creators Taika Waititi and Paul Simms) at the NY Comic Con in October.