Pop punk is a fusion genre that combines elements of punk rock with pop music, to varying degrees.
Pop punk music is usually more melodic and cleaner-sounding than the original punk rock music of the late 1970s. It developed in several cities throughout the world in the 1980s and early 1990s, although it was largely California-based bands that achieved widespread popularity in the mid 1990s. The sound broke into the mainstream with the popularity of Green Day's album Dookie and The Offspring's album, Smash. Other pop punk bands who have achieved much mainstream success include blink-182, Sum 41, New Found Glory, Good Charlotte, Simple Plan, Yellowcard, Bowling for Soup and Fall Out Boy