Celebrated British photographer Rankin has blasted Christina Aguilera as the "diva from hell", vowing never to work with the "self-obsessed" singer again.
The snapper, whose numerous celebrity subjects have included Britney Spears, Kate Moss and Leonardo DiCaprio, worked with Aguilera on a photoshoot in 2007.
But Rankin is adamant he will never photograph the star again because of her bad behaviour.
He tells Britain's Closer magazine, "Christina was a diva from hell and pure torture to be around. She's so self-obsessed.
"She insisted that her chauffeur drive her indoors into the studio so she wasn't papped (snapped by the paparazzi) - even though there was nobody outside. Then, she crashed my after party and her bodyguard stood outside the bathroom shouting, 'Nobody but Christina uses this toilet.' She's a joke."