S-Express is a British dance music act that rose to prominence in the late 1980s. The band, led by DJ and producer Mark Moore, was known for its house music style, incorporating elements of acid house and techno. S-Express is particularly noted for their number one hit, "Theme from S-Express", which played a significant role in popularizing the acid house genre. Moore's innovative use of samples and loops in their music has had a lasting influence on the dance music scene.