American country music, particularly Appalachian, Bluegrass and other ‘Old Timey’ forms are deeply rooted in traditional music from the UK.
One of the things I find especially interesting is how influences can turn back on themselves, in a way, so that the original source becomes the subject of influence.
A great example of this is the adoption of American ‘traditional’ songs and the instruments of Americana music, by the current generation of UK roots music artists.
Here’s a video of Phillip Henry & Hannah Martin performing their version of the ‘traditional’ Bluegrass tune “Wichita”. Note Phillip’s use of the Dobro, an instrument developed in America.