https://www.pcgamer.com/fallout-76-country-roads-cover-for-charity-is-now-on-itunes/

It's July 4, the American Independence Day, and thus the perfect day to release the Fallout 76-ized cover of Country Roads, the John Denver hit that was used to introduce Bethesda's latest post-nuclear adventure to the world. The track is available now on iTunes for $1, and all proceeds raised will be donated to Habitat for Humanity. 

The track is credited on iTunes to Copilot Music and Sound, a company founded in 2008 to create musical content for advertising, games, and other media. They're not exactly the Rolling Stones but you've almost certainly heard some of their past work: Copilot created the Blitzmensch song, the Fallout 4: Nuka-World theme, the Drunken Whaler song from Dishonored, and various other tracks from the Wolfenstein, Dishonored, and Doom games.