Willie’s daughter Amy Nelson was just five years old when she first heard Kermit the Frog sing “Rainbow Connection” in The Muppet Movie, and she spent the next twenty years trying to talk her dad into recording it. In 2001, he finally did, with Amy—an accomplished musician in her own right—co-producing. She describes the way that session grew into a magical, extended-family affair mixing songs Willie once sang to his kids with a few of his more grown-up favorites, resulting in Rainbow Connection, a 2002 Grammy nominee for country album of the year.