At his father's urging, Waronker – by then educated in songwriting, the music industry, and publishing – attended USC, where he studied music and business. As he had in high school, Waronker worked in the A&R department at Liberty during summer breaks. Notably, in addition to serving as a gofer, Waronker worked with staff producer Snuff Garrett. Garrett, who was legendary for his "shrewd ability to identify a good song and know what singer could do it justice" heavily influenced Waronker as he learned about production.