A "mashup" is a creative blend of different elements, often seen in music, art, and technology. In music, for example, a mashup combines two or more songs to create a new track, mixing their melodies and lyrics. This allows artists to explore new sounds and engage listeners in fresh ways, showcasing the versatility of their work. In the tech world, mashups refer to web applications that integrate data from multiple sources to provide a unique service. For instance, a map application that combines Google Maps with Yelp reviews creates a powerful tool for finding restaurants. This innovative approach enhances user experience by merging information seamlessly.