There are three main types of music videos: performance videos, which simply show the artist performing; narrative videos, which tell a story that relates to the song's lyrics or theme through actors or the artist; and conceptual videos, which are based around a single idea and are difficult and expensive to create, using special effects and editing rather than live-action. Performance videos are easiest and cheapest to make but risk being boring, while narrative videos are more engaging but complex, and conceptual videos are uncommon and hard to relate to.