To legally download "Let Her Go" by Passenger as an MP3, you can purchase the track from official retailers or access it through licensed music libraries. The song, released on July 24, 2012, as the second single from the album All the Little Lights , became a global hit with over four million digital copies sold in the U.S. alone. Official MP3 Download Platforms
While not a permanent MP3 file you can move between devices freely, these services allow you to "download" the track for offline listening within their respective apps: Let Her Go MP3 Download
: Offers the song for purchase and download in various high-quality formats, including MP3. To legally download "Let Her Go" by Passenger