Jorge & Mateus and Matheus & Kauan are Brazilian sertanejo duos originating from the state of Goiás (Jorge & Mateus) and Mato Grosso (Matheus & Kauan), respectively. Both acts perform within contemporary sertanejo and sertanejo universitário, a pop-leaning variant of traditional Brazilian country music that blends acoustic and electric instrumentation with polished studio production. Jorge & Mateus formed in the mid-2000s and became known for melodic, romantic songs and high-energy live performances that helped popularize the modern sertanejo sound across Brazil. Matheus & Kauan emerged in the early 2010s and are noted for combining emotive ballads with danceable, radio-friendly arrangements, frequently featuring vocal harmonies and electronic elements common to the genre.