About Mrs. Miller
Elva Ruby Miller known professionally as Mrs. Miller, was an American singer who became a novelty figure in the 1960s for her unconventional interpretations of contemporary pop songs. An untrained mezzo-soprano, she performed with a pronounced vibrato and frequently deviated from standard pitch and tempo. Arranger Fred Bock heard her recordings, encouraged her to attempt contemporary popular songs, and submitted the results to various record labels. Miller's recording of "Downtown" entered the Billboard Hot 100 in April 1966, where it reached No. 82.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.