As part of Katy Perry’s strangely addictive four-day Witness Word Wide YouTube live stream, the singer recently found herself having quite the revealing breakfast with James Corden.

Promoting the release of her new album, KP was woken up by the Late Late Show host to play a game of Spill Your Guts or Fill Your Guts, as she dished all of the dirt a human could want.

Her task was to simply rank three ex-lovers, in this case Diplo, John Mayer and Orlando Bloom, according to their sex performancesin order of worst to best.

In at number three was Diplo, with Bloom second and Mayer number one, as she insisted: "They're all amazing lovers and I would have sex with all of them when I get out of this place!"

While she also added that Josh Groban is the “one that got away”.

"People are like, who's the one who got away? That's Groban," Perry told Corden. "He's one of my good friends. I love him so much. He's the best."

Anyone else think that Bloom, Mayer and Groban could be long lost brothers?