Glenn Alan Medeiros is an American former musician, singer, and songwriter. He achieved worldwide international chart success in the late-1980s and early-1990s. He is best known both nationally and internationally for his 1987 George Benson cover, "Nothing's Gonna Change My Love for You", which reached No. 12 on the US Billboard Hot 100 and topped the charts in Canada and Europe.
In 1988, he followed that single with "Un roman d'amitié", a duet with Elsa Lunghini which achieved huge success in France where it managed to top the chart for six consecutive weeks, and remained on the Top 50 chart for 25 weeks. In 1990, Medeiros also collaborated with R&B artist Bobby Brown for "She Ain't Worth It", a US and international chart-topper.
After his musical career peaked, Medeiros taught and was vice-principal at the Maryknoll School, a parochial school in Honolulu, Hawaii, and as a professor at Chaminade University, a private Marianist university that shares its grounds with Saint Louis School. In 2015, Medeiros became the Head of School/Principal of Saint Louis School in Honolulu, and in 2017 its president/CEO.