America Sings was an attraction at Disneyland in Anaheim, California, United States, from 1974 to 1988. It featured a cast of audio animatronics animals that entertained the audience by singing songs from various periods in America's musical history, often in a humorous fashion. History America Sings opened on June 29, 1974, replacing the General Electric-sponsored Tomorrowland attraction Carousel of Progress, which had moved to the Magic Kingdom at the Walt Disney World Resort in 1973. America Sings used the same Carousel Theater as its predecessor. The building had an outer ring of six theaters, connected by divider walls, that revolved mechanically about every four minutes around the six fixed stages in the center of the building. Unlike Disneyland's Carousel of Progress, which rotated clockwise, America Sings rotated in a counterclockwise direction. Also, unlike Carousel of Progress, America Sings only used the lower level of the Carousel Theater. The upper level was eventually used to house the SuperSpeed Tunnel in 1977 (which later became themed to the Game Grid from the 1982 film Tron) that the PeopleMover transportation attraction passed through. Written primarily by Marc Davis and Al Bertino, America Sings featured a singing cast of audio-animatronics animals. The show's Masters of Ceremonies were an American bald eagle named Sam (voiced by Burl Ives) and an owl named Ollie (voiced by Sam Edwards). Eagle Sam was designed by Disney animator Marc Davis, as were the other characters. Eagle Sam is completely separate from the Sam the Olympic Eagle character designed a decade later by C. Robert Moore (also a Disney employee) for the 1984 Summer Olympics. Like the Carousel of Progress, the first and the last scenes of America Sings involved the loading and unloading of guests, while the other four scenes, or "acts," depicted a particular era. However, the identical load and unload theaters each featured a small curtained gazebo with a backdrop showing a park. The curtains would open to reveal Sam and Ollie standing on a two-level podium, with Sam standing on the higher level, introducing or closing the show. Between each act, as the theater rotated, the lights blacked out, and the theater illuminated with flashing stars; during the rotations, Sam sang about the next era the audience was about to enter, reprising the chorus of "Yankee Doodle". Also, at some point in each act, the Weasel would suddenly appear on the scene, spouting the title line,