Whitney performed the song on Dutch TV 's '' PopsJops '' show , German TV 's '' Peter 's Popshow '' in 1985 , and Japan TV Show '' Night 's Hit Studio '' in 1986 . The following year , Houston performed the song at the 1987 American Music Awards as well as Italy 's Sanremo Music Festival
American Music Awards
American Music Awards of 1987
All at Once (Whitney Houston song)