During the first years of the 1980s, the traditional disco sound characterized by complex arrangements performed by large ensembles of studio session musicians (including a horn section and an orchestral string section) began to be phased out, and faster tempos and synthesized effects, accompanied by guitar and simplified backgrounds, moved dance music toward electronic and pop genres, starting with hi-NRG. Despite its decline in popularity, so-called club music and European-style disco much remained "relatively" successful in the early 1980s, with songs like Irene Cara's "Flashdance... What a Feeling" (theme to the film "Flashdance") or Laura Branigan's "Self Control." However, revival of the traditional-style disco called nu-disco was also popular during the 1990s and 2020s.