Photographer Brands Christina Aguilera A "Diva"

Photographer Rankin has allegedly branded Christina Aguilera as a "diva".

The famous photographer (who has snapped such high-end celebs as supermodel Kate Moss and the queen of pop Madonna), worked with the singer in 2007 - and he didn't find the job enjoyable.

"Christina was a diva from hell and pure torture to be around." Closer magazine quote Rankin as saying. "She's so self-obsessed."

"She insisted her chauffeur drive her indoors into the studio so she wasn't papped - even though there was nobody outside." The tog recalled.

"Then she crashed my after-party and her bodyguard stood outside the bathroom shouting. 'Nobody but Christina uses this toilet!' She's a joke!"

Aguilera recently said she is "excited" by her upcoming movie role in 'Burlesque'. She is also working on a futuristic album.