The Metrognome is a villain that appeared in the Grojband episode Curse of the Metrognome. He is am evil magical gnome that steals people's timing from them by using his time stealing magic.
The Metrognome has been around ever since the times of Rock Lore. He has always been cursing people with his magic every New Year's Eve to mess up their timing. By cursing people like this, the Metrognome can make his beard grow bigger. The Metrognome sleeps every year and only wakes up on New Year's Eve so that he can curse people with his magic. He made his first appearance in the episode Curse of the Metrognome. In this episode, he was woken on. New Year's Eve to curse Grojband and make them lose their timing so that they would fail at their plans to play music at the turn of the new year at the New Year's cube drop. After this, he went on a rampage, cursing everybody in Peaceville. In the end of the episode, he went to the New Year's cube drop and cursed the cube to make it drop off timing. This made his beard grow so big, that it exploded, killing him and making his beard hairs rain on the New Year's celebration. Everybody ate his beard hairs which made them regain their timing again.