Indie band and YouTube darlings OK Go have a new video out today, and it’s a bit more animated than usual. “Last Leaf,” which premiered today on the band’s MySpace page, was made possible in part by Samsung, who spurred the creation of the video by asking, "What’s your next project?” The band told the electronics company that it wanted to work with Nadeem Mazen and Ali Mohammad, founders of Serious Business Design, on a sketchy concept.