Junior Torello, born Karin Sabine Hartmann-Eisenblätter on January 17, 1950, is a renowned German songwriter and producer. She is married to Dieter Lünstedt and is known by several aliases, including Gee Leaves, K.S. Haardt, Karin Hartmann, Karin van Haaren, and Tom Jamski. Torello gained significant recognition for her work in the early 1990s, particularly with the Eurodance hit "What Is Love" by Haddaway. The song, co-written with Dee Dee Halligan, became a major international success, reaching number one in 13 countries and peaking at number two in the UK and Germany. Torello's songwriting contributions extend to other hits such as "Life," "I Miss You," and "Rock My Heart," all performed by Haddaway. Her work spans various genres and artists, including collaborations with Eminem on the song "No Love" and with David Guetta, Anne-Marie, and Coi Leray on "Baby Don't Hurt Me." Throughout her career, Junior Torello has been credited with writing, arranging, and producing numerous tracks, solidifying her legacy in the music industry.