Latin music entered American popular music in three phases from the early 20th century. The first phase involved exotic novelty songs that incorporated Latin dance rhythms. The tango and rumba became popular dance fads. In the 1930s-1950s, Latin music hybridized with American styles to develop a commercial Latin sound led by Xavier Cugat. The mambo emerged as a fusion of Afro-Cuban son with big band. Artists like Tito Puente and Antonio Carlos Jobim incorporated Latin rhythms into mainstream American pop music. Starting in the 1950s, genres like the bossa nova, salsa, and tejano music became part of the fabric of American popular music.