Arturo R. Molina Jr., better known as Frost, is an American rapper, songwriter and record producer from Los Angeles. He charted in the 1980s with his first four albums: Hispanic Causing Panic, East Side Story, Smile Now, Die Later and When Hell.A. Freezes Over. His most successful single is "La Raza" which hit number 6 on the rap songs chart in August 1990. His 1990 debut album is credited as the first Chicano rap album.

Chicano rap is a subgenre of hip hop that embodies aspects of the Mexican American or Chicano culture.