The JAM Song - WPLJ

JAM Productions has been creating jingles for radio, television and commercials from their headquarters in Dallas, Texas since 1974.  In 1985, JAM created a song consisting of dozens of station jingles and pressed it as a "promo-only" record which was sent out to their clients.  The entire station list was printed on the back of the record jacket, a link to which can be found here.  The video above has some incorrect logos but overall it's an entertaining radio jingle time capsule.

The first station mentioned in the JAM Song is WPLJ in New York, New York.  They were an Album Oriented Rock station throughout the 1970s and early 80s but carried a Top-40 format at the time the JAM jingle was current.  They are now a Hot Adult Contemporary station.
WPLJ's call letters were named after Frank Zappa's cover of the Four Deuces song "WPLJ" from 1955 and stand for White Port and Lemon Juice.