NEW YORK (AP) — Lyor Cohen, the chief executive of Warner Music Group Corp.'s recorded music division, is resigning at the end of September.

The company announced the move Monday.

Cohen was credited with restructuring the division after joining Warner in 2004. During his tenure, Warner had hits with artists such as The Black Keys, Bruno Mars and Cee Lo Green.

Cohen told artists and employees in a statement to "'keep on keepin' on' in the tradition of a company that respects and honors the artistic community."

Warner Music CEO Stephen Cooper said he understood Cohen's "desire to move on to his next challenge."

With Cohen's departure, the company's senior label executives will report directly to Cooper.

Last year, New York-based Warner Music was taken private by billionaire Len Blavatnik for $1.3 billion.