As if Ryan Seacrest weren't busy enough, the host of American Idol, On-Air with Ryan Seacrest and the syndicated American Top 40 radio countdown is adding a fourth gig to his repertoire. The well-groomed emcee has been named the new host of KIIS-FM's popular L.A.-based morning radio program. He replaces Rick Dees, who got the big KIIS off after 22 years with the station. Still, he's gotta be feeling better than Brian Dunkleman right about now.