Infinity Broadcasting has promoted president/COO Joel Hollander to chairman/CEO, effective immediately. In his new position, Hollander will have overall responsibility for Infinity's 183 radio station

NEW YORK (Billboard Radio Monitor) -- Infinity Broadcasting has promoted president/COO Joel Hollander to chairman/CEO, effective immediately. In his new position, Hollander will have overall responsibility for Infinity's 183 radio stations and will oversee day-to-day operations of the division. He reports directly to Viacom co-president and co-COO Les Moonves.

The promotion has been widely anticipated, ever since reports began leaking that John Sykes would step down as Infinity CEO. Infinity now confirms that Sykes is, in fact, leaving Infinity to take on a new role at MTV Networks, overseeing the development and launch of new branded television networks. Details on the new position are expected shortly.

While Hollander's track record as one of the industry's most successful managers is undisputed, he'll need to keep up the momentum he has begun to reinvigorate the Infinity radio group.

"I'm focusing on content, new formats, replacing Howard Stern, and branding the group," said Hollander. "We also want to manage our portfolio differently and increase our presence in some of the bigger markets such as Minneapolis, Houston, San Diego and Philadelphia."

Prior to returning to Infinity, Hollander served as president/CEO of Westwood One from 1998-2003. Before that, Hollander was GM of sports WFAN-AM New York, where he first worked under Mel Karmazin, now CEO of Sirius Satellite Radio.

Under Hollander's watch "The Fan" rode an unprecedented 11-year streak as the leader in sports talk radio and became the country's top billing radio station. His New York radio experience also includes sales positions at R&B WBLS, the original disco WKTU, rock WAPP and adult R&B WRKS.