John McColgan (70) and Moya Doherty (57) have coined it from the global success of their Riverdance extravaganza. More than 100 million people have seen the show since its inception as the interval act in the 1994 Eurovision Song Contest.
They initially owned 65.6pc of Riverdance, with RTÉ and investors, including Maurice Cassidy and Paul McGuinness among the other shareholders, but they later took full control. The investors had shared €210m at the peak of the Riverdance phenomenon by 2000. But it continues to make money.
McColgan and Doherty - now chairman of RTÉ - are really serious property investors, helping back Derek Quinlan's €1.1bn buyout of the Savoy Hotel group and several other big and highly-geared deals back in the boom.
They have also owned condos in Manhattan to a sizeable pad in Martha's Vineyard. The couple also made about €17m from the sale of radio interests, including Today FM.