Kevin Temmer (born January 5, 1993) is an American YouTuber, animator, and songwriter best known for his cartoonish and puppet style of animating. He is currently working at SMG4's company Glitch Productions as a lead animator. As of January 2022, his most popular video to date is "What's the Matter, Martha?", which has accumulated 3.9 million views. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.