Psychedelic pop is a pop rock subgenre in which musical characteristics associated with psychedelic music are applied to pop songs. This includes effects such as sitars, fuzz guitars, tape manipulation, backwards guitars, and Beach Boys-style harmonies. Blended with pop, they create melodic songs with tight song structures. According to AllMusic, the style was not too "freaky", but also not very "bubblegum" either. It reached its peak during the late 1960s, and declined rapidly in the early 1970s.