Chorus pedals create lush, shimmering modulation by slightly delaying and detuning the signal. Popularized in the 1970s and ’80s, they add depth and movement to clean and distorted tones alike. Notable models include the Boss CE-2, Electro-Harmonix Small Clone, Walrus Audio Julia, and TC Electronic Corona. Chorus is commonly used in alternative, pop, and rock music to thicken tones, add dreamlike textures, or enhance clean arpeggios. While some players find it overly processed, subtle use can add richness without overpowering the mix.