The main character is a purple and green Tyrannosaurus rex in stuffed animal likeness, who comes to life through a child's imagination. His theme song is "Barney Is a Dinosaur," which is sung to the tune of "Yankee Doodle". Barney often quotes things as being "Super dee-duper". Episodes frequently end with the song "I Love You", sung to the tune of "This Old Man", which happens to be one of Barney's favorite songs. Despite being a carnivorous type dinosaur, Barney likes many different foods such as fruits and vegetables, but his main favourite is a peanut butter and jelly sandwich with a glass of milk. He also loves marching bands and parades.