Don Ienner was the Chairman of the Sony Music Label Group during first half of the decade of the 2000s. He worked closely with his predecessor Tommy Mottola

Tommy Mottola

Thomas Daniel "Tommy" Mottola is an American music executive, co-owner of Casablanca Records in a joint venture with the Universal Music Group. He is the ex-husband of Mariah Carey and is married to Mexican singer Thalía...

 and was partially responsible for the breakthrough of Mariah Carey

Mariah Carey

Mariah Carey is an American singer-songwriter, record producer, and actress. She made her recording debut with the release of her eponymous studio album in 1990, under the guidance of Columbia Records executive Tommy Mottola, whom she later married in 1993...

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He resigned from that position on June 1, 2006.

Don Ienner and his brother Jimmy Ienner

Jimmy Ienner

Jimmy Ienner is an American music producer, best known for producing albums for such artists as John Lennon, Bay City Rollers and Three Dog Night. He went to Stamford High School and graduated in the Class of 1963. He grew up in the Cove section of Stamford and while still in High School,...

founded a music production company C.A.M. U.S.A., which operated from 1972-1977.