In both life and music, the secret to success is love. This universal emotion stands out as the key protagonist in the most listened-to songs of all time. According to a study by Salvador Climent Roca and Marta Coll-Florit from the GRIAL applied linguistics research group (tied to the UOC Faculty of Arts and Humanities), love is central to 52 of the 71 songs that topped the Billboard magazine's year-end charts from 1946 to 2016. "Pop music is created to achieve commercial success, and evocations of feelings of love and unrequited love are powerfully attractive for all types of audiences," said the authors.