"Vision of Love" by American singer-songwriter Mariah Carey, is from her 1990 self-titled debut album. The song features a slow-dance theme tempo and backing vocals sung by Carey herself, and introduces her usage of the whistle register.
http://en.wikipedia.org/wiki/Vision_of_Love
http://en.wikipedia.org/wiki/Mariah_Carey_(album)
http://en.wikipedia.org/wiki/Mariah_Carey
http://en.wikipedia.org/wiki/Vision_of_Love
http://en.wikipedia.org/wiki/Mariah_Carey_(album)
http://en.wikipedia.org/wiki/Mariah_Carey