High Quality Content by WIKIPEDIA articles! "Yatta!" is a 2001 parody song by a fictional Japanese band called Green Leaves. The song title, "Yatta", is the past tense of the Japanese verb yaru ("to do") and is also the familiar short form of yarimashita, an exclamation meaning "It's done!", "I did it!", "Ready!" or "All right!" The song was first performed as a sketch on the Japanese sketch comedy show Adventures of a Laughing Dog, known as "Silly Go Lucky" in the United States, where Happa-tai, a sendup of a stereotypical boy band, is portrayed by some of Japan's most well-known comedians. The video features its members singing and dancing exuberantly while wearing only underwear with a large green leaf on the front. The six band members' synchronized dancing and personalized poses for the camera to parody the boy band craze. The sketch satirizes many of the stereotypes of Japanese pop culture, including such tropes as a romantic interlude during the song's bridge that takes place on a city street filled with floating sakura blossoms.