Do You Know stands as a compelling song in Uriah Heep's extensive discography, appearing on the 1977 album Firefly. Released during a period of significant transition for the British rock band, the track showcases the group's signature blend of melodic hard rock and progressive elements. The recording captures the band's ability to balance heavy guitar work with atmospheric textures, a hallmark of their sound throughout the mid-to-late 1970s. As part of the Firefly era, the song reflects the band's continued evolution while maintaining the classic rock identity that defined their most celebrated years. It remains a notable piece for listeners exploring the group's catalog beyond their most famous singles, offering a glimpse into their songwriting depth during this specific chapter of their career.