Johnny Crawford, the co-star of the television series The Rifleman, was the Del-Fi artist who recorded the most hit singles.

[1] In 1966, legal action was taken against Del-Fi by attorney Al Schlesinger for Anthony Music, which filed a $122,000 suit over breach of contract, fraud and money owed.

The principal stockholder of the company, Anthony Hilder, claimed the dispute was over royalties not being paid as per an alleged agreement for the masters of albums by The Centurians, Dave Myers and The Surftones, and The Sentinels, and an LP Battle of the Surf Bands.

The Mustang label achieved fame through Bobby Fuller Four (previously on Donna Records), producing their biggest hit, "I Fought the Law" in 1965.

Their fame continued into 1966, with assistance from the then A&R man Barry White, but Fuller's death later that year brought a halt to the label, and Mustang Records closed down in 1967.