André Léon Marie Nicolas Rieu (French pronunciation: ​[ɑ̃dʁe leɔ̃ maʁi nikɔla ʁijø]; born 1 October 1949) is a Dutch violinist and conductor best known for creating the waltz-playing Johann Strauss Orchestra.

Rieu and his orchestra have turned classical and waltz music into a worldwide concert touring act. He resides in his native Maastricht.

Source: Wikipedia (https://en.wikipedia.org/wiki/Andr%C3%A9_Rieu)