Tommy Johnagin was back on Late Show with David Letterman last night. You may have heard about how Johnagin has become a father with his girlfriend, and how he feels about fatherhood — Johnagin will explain that for you now (or again) in this clip. He’ll also go into detail about how he’s still a bit frustrated at times as a son to his own mother. Particularly when it comes to describing iTunes to her. How his mother is only now discovering this, or rather, not discovering iTunes, will come as a revelation to you, too.

Roll the clip!