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James Corden drinks bird saliva to get out of awkward question from Justin Bieber

Julia Hunt
James Corden attends the world premiere of "Cats" in New York City. (Taylor Hill/FilmMagic)

James Corden chose to drink bird saliva rather than tell Justin Bieber who was more talented out of him and Harry Styles.

Pop star Bieber dropped in to Corden’s Late Late Show this week and the pair played a game of Spill Your Guts, in which they got to ask each other some tricky questions.

In the game, if a person chooses not to answer they have to eat something unpleasant.

Read more: James Corden reveals the rudest celebrity he's ever met

Yummy singer Bieber asked Corden: "I'm 25 years old, your friend Harry Styles is also 25 years old. Which 25-year-old is more talented?"

The talk show host refused to be drawn and replied, “Cheers”, before downing the disgusting drink.

The singer also asked Corden how much he regretted doing the film Cats, on a scale of one to 10.

The film adaptation of the stage show, which also stars Dame Judi Dench, Idris Elba and Taylor Swift, was widely panned by critics.

Corden, who had to eat cod sperm if he decided not to spill the beans, told Bieber: “Well, here’s the thing, I had the loveliest time making that film.

“It took me six days and I loved every single second of it. So, I think you’ve got to be careful not to… you’ve got to decide things on your own personal experience, and I had a really great time.

Read more: Justin Bieber says child fame left him suicidal and 'abusing heavy drugs'

“So, I don’t regret doing it at all because I decided to do it in the same way I decided to do many things. Some have worked, some haven’t.

“So, I’m going to put it at a solid five… 4.5.”

When it was Bieber’s turn in the hot seat, he happily sipped a drink made of shrimp and chili pepper instead of saying which country had the worst fans.