Dave "Baby" Cortez is an American musician and songwriter, primarily known for his work in the genres of rock and roll, pop, and instrumental music. Born on December 13, 1938, in San Antonio, Texas, Cortez gained prominence in the 1960s, particularly with his hit single "The Happy Organ," which reached No. 1 on the Billboard Hot 100 in 1959. This track was notable for being one of the first to feature the organ as a lead instrument in popular music, showcasing Cortez's innovative approach to sound. In addition to "The Happy Organ," he is known for other hits like "Rinky Dink" and "The Mexican Shuffle," both of which contributed to the popularity of the organ in rock music during that era. Cortez's work helped pave the way for the use of keyboards in various musical styles and influenced artists who followed. His blend of catchy melodies and rhythmic grooves made his music accessible and enduring, leaving a lasting imprint on the instrumental rock genre. Cortez's contributions are often celebrated in retrospectives of 1960s music, highlighting his unique style and influence on the evolution of popular sound.