Question: When was the American-born former Japanese pop singer born who was debuted in February 2003 and also a belongs to the category of  "Dekichatta kekkon"?
Sentence (from "Dekichatta kekkon"): In Japan, the slang term "Dekichatta kekkon" (出来ちゃった結婚 ) , or "Dekikon" (デキコン ) for short, emerged in the late 1990s.
Relevant evidence: Yes