Aguilera has put on a lot of weight

Christina Aguilera must be comfort eating following the failure of her latest album Bionic! The singer looked liked she had gained a considerable amount of weight at a bash at the Los Angeles County Museum of Art over the weekend.

Christina is currently filming the musical Burlesque in which she plays a small-town girl who ventures to LA and finds her place in a neo-burlesque club run by a former dancer — played by Cher.

Aguilera’s weight gain has left many insiders mystified.

“It’s bizarre Christina has put on so much weight as she’s been doing lots of dancing and high energy work for Burlesque,” a source told Britain’s Daily Mail newspaper.

“The whole movie is choreography and she was very active so I’m surprised she’s piled on the pounds so quickly.”

It’s believed Christina has piled on at least a stone over the past three months.