Improvised comedy, often referred to as improv, is a form of live performance where comedians create scenes and dialogue spontaneously, without a script. This style relies heavily on the performers' creativity, quick thinking, and ability to collaborate with one another. Audience suggestions often inspire the content, making each performance unique. In improv, actors may use various games and formats, such as long-form or short-form improv, to structure their performances. Popularized by groups like The Second City and Upright Citizens Brigade, this art form emphasizes humor derived from unexpected situations and character interactions, engaging both the performers and the audience.