F. J. McMahon has been played over 30 times on NTS, first on 29 November 2015. F. J. McMahon's music has been featured on 31 episodes.

F. J. McMahon is a folk-rock musician from Santa Barbara, California, who released one album called "Spirit of the Golden Juice" in 1969. Pressed in a tiny quantity and scattered around the California coastline, Spirit of The Golden Juice has become a top item among collectors and folk/psych lovers alike. Its a spell-binding blend of heartfelt singer-songwriter emotion and spiraling acoustic guitar accompaniment, standing up proudly alongside heroes like Hoyt Axton, Kris Kristofferson, and Fred Neil, but with a raw and adventurous spirit all its own. As his sole musical release, F.J. McMahon created one of the most emotionally compelling and cohesive albums ever.