An answer song (or response song) is, as the name suggests, a song (usually a recorded track) made in answer to a previous song, normally by another artist. It is also known as an answer record. The concept became widespread in blues and R&B recorded music in the 1930s through 1950s. Answer songs were also extremely popular in country music in the 1950s and 1960s, most often as female responses to an original hit by a male artist.
The original "Hound Dog" song sung by Big Mama Thornton reached number 1 in 1953, and there were six answer songs in response; the most successful of these was "Bear Cat", by Rufus Thomas which reached number 3. This led to a successful copyright lawsuit for $35,000 which is said to have led Sam Phillips of Sun Records to sell Elvis Presley's recording contract to RCA.
Today, this practice is most common in hip hop music and filk, especially as the continuation of a feud between performers; the Roxanne Wars was a notable example which resulted in over a hundred answer songs. Answer songs also played a part in the battle over turf in The Bridge Wars. Sometimes an answer record imitated the original very closely and occasionally a hit song would be followed up by the same artist.