Jules Bihari, born Julius Jeramiah Bihari on September 9, 1913, in Pottstown, Pennsylvania, was the eldest of the four Bihari brothers, renowned for founding Modern Records, a pivotal independent blues and R&B label of the 1940s and 1950s. Raised in Tulsa, Oklahoma, in a large Jewish family of Hungarian descent, Jules moved to Los Angeles in 1941. There, he began working with jukeboxes in black neighborhoods, which exposed him to the demand for blues records that were difficult to stock due to inadequate distribution.

In response, Jules, alongside his brothers Saul, Joe, and Lester, established Modern Records in 1945. As vice president, A&R, and a session producer, Jules played a crucial role in the label's success, signing notable artists such as Hadda Brooks, B.B. King, John Lee Hooker, Elmore James, Etta James, and Lightnin' Hopkins. Despite their success, the Bihari brothers were known for claiming songwriting royalties by using pseudonyms like "Jules Taub," even when they did not contribute to the songwriting process.

Throughout the 1950s, Modern Records expanded by launching subsidiary labels like RPM, Flair, and Meteor. However, the company faced challenges and eventually went bankrupt in the mid-1960s. The brothers continued their work under the Kent label, and Jules also founded the Big Town label and produced films for comedian Rudy Ray Moore.

Jules Bihari passed away on November 17, 1984, in Los Angeles, California. His legacy, along with that of his brothers, was marked by their significant contributions to the music industry, particularly in transforming rhythm and blues into rock and roll, while also being marred by controversial business practices.