[2] KYPA is one of four radio stations in the greater Los Angeles area that broadcast entirely in Korean; the others are KMPC, KGBN, and KFOX.

For a short time in the late 1970s, after the ratings success of similarly-formatted KDAY, the call letters were changed to KKTT, "The Cat," in an attempt to modernize KGFJ's image.

During the 1960s and early 1970s, KGFJ was a well-respected and influential soul music outlet, with many top name DJs, including Hunter Hancock, Lucky Pierre, Larry McCormick and the Magnificent Montague.

Among the many personalities heard on the station in the 1960s were Johnny Magnus, Rudy Harvey, Herman Griffith, Curtis Troupe, Jim Randolph, Tom Reed, Roland Bynum [who replaced Montague when he retired, as Soulfinger], Frankie Crocker, Johnny Soul (Ron Samuels) and Russ O'Hara.

The station, as well as AM 820 in Chicago, aired mainly recorded content from motivational speakers, including condensed seminar speeches and interviews with business executives.