You know this is something I greatly appreciate about the stripes as well. I think in this regard Jack is a folk musician, recycling, interpolating, and carrying on a tradition that was global and has been forever. To me, public domain songs are the best kind. Refined like wine over centuries of time, you don't get better than Wayfaring Stranger, House of the Rising Sun, or in Jacks case "one more cup of coffee" and "St. James Infirmary Blues"
I'm hoping they cover Tom Wait's "I don't want to grow up" or Neil Young's "After the gold rush"