The Trio was used by Elgar in a song called "The King's Way" which he wrote, to his wife's words, in celebration of the opening of an important new London street called Kingsway in 1909.
In World War II, No. 4 also acquired words: a patriotic poem by A. P. Herbert with the refrain beginning "All men must be free" was used as "Song of Liberty".
In the wedding of Charles, Prince of Wales, and Lady Diana Spencer, Pomp and Circumstance No. 4 served as the recessional. As Diana's veil was lifted and the couple bowed and curtsied to Queen Elizabeth II, the opening notes sounded and continued as they walked down the aisle of St Paul's Cathedral out to the portico and the waiting crowds.