Adolf Fredrik's Music School is a general municipal junior high school in Stockholm, Sweden with a focus on choral music, and highly competitive admission based on audition in singing and musical ability. The school has two campuses and three youth choirs of high international standard. Many professional musicians are alumni.

Sonja Annika Maria Aldén is a Swedish singer known best for her 2006, 2007, 2012, and 2020 Melodifestivalen entries, as well as for working together with Shirley Clamp and Sanna Nielsen, along with her songwriting for other artists. For example, she co-wrote the song "Night of Passion" for hard rock/heavy metal band The Poodles, which was their entry for the Swedish Melodifestivalen 2006.