Mafalda Costa is a Portuguese composer, singer, and instrumentalist. After gracing some of the country's top stages, including the Paredes de Coura Festival and Casa da Música, she emerges on the Portuguese music scene for the first time under the alter ego Mathilda. The following year is filled with dozens of concerts and performances in four countries, along with numerous features in national and international press. In September 2019, her full-length album earned her a spot among the "50 best Portuguese albums" of the year by BLITZ. In 2023, after a hiatus, Mafalda returns to the music scene, this time under her own name, in collaboration with musician and producer St. James Park, with the single "In Your Name."