Question: What is the birthdate of this soprano singer in opera and musical theater, who sang her first solo guided by this Dutch violinist and conductor best known for creating the waltz-playing Johann Strauss Orchestra?
Sentence (from "André Rieu"): André Léon Marie Nicolas Rieu (born 1 October 1949) is a Dutch violinist and conductor best known for creating the waltz-playing Johann Strauss Orchestra.
Relevant evidence: Yes