Robert James Byrd (July 1, 1930 – July 27, 1990), known by the stage name Bobby Day, was an American rock and roll and R&B musician.
Born in Fort Worth, Texas, Day moved to Los Angeles, California, at the age of 15. As a member of the R&B group, The Hollywood Flames, he used the stage name Bobby Day to perform and record. He went several years with minor musical success limited to the West Coast, including being the original "Bob" in the duo Bob & Earl. In 1957, Day formed his own band called the "Satellites" following which he recorded three songs that are seen today as rock and roll classics.
Day's best known songwriting efforts were "Over and Over" made popular by the Dave Clark Five in 1965, and "Little Bitty Pretty One" popularized by Thurston Harris in 1957, Clyde McPhatter in 1962 and the Jackson Five in 1972. However, Day is most remembered for his 1958 solo recording of the Billboard Hot 100 No. 2 hit, "Rockin' Robin", written by Leon Rene under the pseudonym Jimmie Thomas. It sold over one million copies, and was awarded a gold record. "Rockin' Robin" was a song covered by Bob Luman at Town Hall Party on October 28, 1958, The Hollies in 1964, Gene Vincent in 1969, Michael Jackson in 1972, and by McFly in 2006.