The Backyardigans

The show is an animated musical-adventure series aimed at children between the ages of 2 and 10. In each episode, the show's five preschool friends—Pablo, Tyrone, Uniqua, Tasha, and Austin—rely on their vivid imaginations to transform their backyard into completely different worlds, in which they go through many sorts of stories and adventures. The time-frame of the show can range from a few hours to more than one full day, but in reality, the story always ends just in time for one of them to invite the others for a snack. The episodes focus on the stories as much as they do on music and dancing, with each one featuring a different music genre (such as big band, reggae, Spaghetti Western, polka, Motown, and disco) and four new songs, usually with at least one rearrangement of a well-known or traditional song. Not all of the characters are in each episode.
---Wikipedia