Olivia Newton-John, an Australian singer whose across-the-board appeal to pop, MOR, and country audiences in the mid-1970s was similar to Denver's, lent her distinctive backup vocals to Denver's 1975 single "Fly Away"; she performed the song with Denver on his 1975 "Rocky Mountain Christmas" special. She also covered his "Take Me Home, Country Roads", and had a hit in the United Kingdom (#15 in 1973) and Japan (#6 in a belated 1976 release) with it. In 1976, Denver and Newton-John appeared as guest stars on "The Carpenters' Very First Television Special", a one-hour TV special broadcast on the ABC television network.