We always find this completely strange, and just a little uncomfortable really, in fact, there should be some rule that if you have ever hosted The Late Late Show, you are just never allowed to return as a guest.
Especially if you are Gay Byrne, who can never seem to settle into his second-in-command post as a guest on a show he hosted for a gazillion years. He is set to appear on the show tonight though, most likely to talk about something RSA concerned, but probably most importantly, to school Ryan in his hosting skills.
It's going to be awkward folks, oh so awkward....