Ryan John Seacrest (born December 24, 1974) is an American radio personality, television host, network producer and voice actor. He is the host of On Air with Ryan Seacrest, a nationally syndicated Top 40 radio show that airs on KIIS-FM in Los Angeles and throughout the United States and Canada on Premiere Radio Networks, and the internationally syndicated chart show American Top 40, also syndicated by Premiere Radio Networks. On television, Seacrest hosts E! News and American Idol.