The Story Behind Ryan Seacrest’s Famous ‘Seacrest Out’ Signoff On American Idol

The best radio and TV hosts often have memorable signoffs that become an important part of their brand.

So how exactly did the American Idol host land on the snappy soundbite?

If a good signoff is one of the marks of a good host, then Ryan Seacrest can count himself among them — and rightly so, with a full career of hosting gigs — as he boasts a pretty popular catchphrase in “Seacrest out!”