They include the Mormon Tabernacle Choir, the Muppets,and Mary J.Blige.

VOA: special.2009.12.25

So don't go to "Once" expecting to see knock-'em-dead production numbers belted out by a platinum-blond babe backed by the Rockettes and the Mormon Tabernacle Choir.

WSJ: Once | Jesus Christ Superstar | The Little Musical That Should | Theater Review by Terry Teachout

At Richard Nixon's first inauguration in 1969, the crowd was treated to "This is My Country" performed by the Mormon Tabernacle Choir of Salt Lake City, according to the Joint Congressional Committee on Inaugural Ceremonies.

CNN: STORY HIGHLIGHTS