Rick Dees, longtime morning man at top-40 radio station KIIS Los Angeles, announced on the air yesterday that he was immediately exiting the station.

Rick Dees, longtime morning man at top-40 radio station KIIS Los Angeles, announced on the air yesterday that he was immediately exiting the station.

Dees, a fixture at KIIS since 1982, will continue to host countdown show "Rick Dees' Weekly Top 40," which Clear Channel's Premiere unit syndicates to 350 U.S. stations.

"American Idol" host Ryan Seacrest is expected to take Dees' seat at KIIS.