Russian-born American dancer Mikhail Baryshnikov and American ballerina Gelsey Kirkland perform in the American Ballet Theatre's production of 'Le Corsaire' (by Marius Petipa and set to the music of Adolphe Adam) at the Metroplitan Opera House, Lincoln Center, New York, New York, July 21, 1975. (Photo by Linda Vartoogian/Getty Images)