The Kim Sisters were a South Korean-born American female trio who made their career in the United States during the 1950s and 1960s. The group consisted of two sisters, Sue (Sook-ja) and Aija (Ai-ja), and their cousin Mia (Minja) Kim. Sue and Aija were two of seven children of Kim Hae-song, a popular music conductor, and Lee Nan-young, one of Korea's most famous singers before the Korean War, perhaps best known for "the Tears of Mokpo." Mia's father was Lee Bong-ryong, a musician as well and was Lee Nan-young's elder brother.
The sisters arrived in Las Vegas, Nevada in 1959 and first performed at the Thunderbird Hotel, where producer Tom Ball did a show with Asian artists. Their successful performances at the Thunderbird led them to the Stardust, where Ed Sullivan saw the trio and invited the sisters to perform on his popular television show. The sisters performed on The Ed Sullivan Show more than 22 times.
Starting in 1953, with the encouragement of their mother and aunt, and to support their family after they lost everything during a bombing, the sisters sang Hoagy Carmichael's Country-Western tune "Ole Buttermilk Sky" and "Candy and Cake" to U.S. troops, who would donate rock and roll records for the sisters to memorize. South Korea was impoverished at the time, and the sisters received chocolate bars and beer for their performances, which they then exchanged for nutritious food. GIs who returned to the States spread word about the talented trio. In Los Angeles, producer Ball heard about the talented youngsters from one of the returning GIs. Ball went to South Korea to see the sisters and secured a contract through the Kims' mother. He became their manager.