Ryan Seacrest’s LA-based radio show, “On Air with Ryan Seacrest,” will start airing Monday on Z100 (10 a.m.-1 p.m.).

Shelley Wade will move to overnights (2 a.m.-5 a.m.) to accommodate Seacrest, whose show will be “customized” for Z100.

Customized elements will include Seacrest interacting with local listeners on “High Noon Countdown,” and “gossip/sleaze” updates from Z100 regular Danielle Monaro, according to a station spokeswoman.

Seacrest got his start in radio. The “American Idol” host has been doing his LA radio show for years, and replaced Casey Kasem on the syndicated “American Top 40” show–heard every weekend on Z100–a few years back.