"A couple of weeks ago I got asked if I would introduce Rihanna on the show," he explained. "I get a call saying Rihanna's got this big thing planned for her song 'Kiss it Better' and she's doing a whole '80s talk show thing, and what she wants you to do is be like an '80s talk show host," he went on.

"I had funny glasses, and I'd introduce Rihanna and then at the end she'd come and sit with me, like it was its own talk show," he explained.

After rehearsing with the former Grammy winner on Saturday, Corden, 37, was good to go, but unfortunately things didn't go quite to plan. "So today, I get all dressed up, this morning a guy came, measured me for an '80s suit. I get down there, do the red carpet, tell everyone I'm going to be introducing Rihanna, she's asked me personally to be part of it, it's amazing," Corden continued. "Then I get to the end of the red carpet and they say Rihanna's pulled out of the show. She's been told by a doctor she's not allowed to sing, and could really damage her voice."