Christina Aguilera was spotted at the airport in Los Angeles with boyfriend Mat Rutler, showing off her weight loss.
She wore tight jeans, flip flops and a t-shirt.
Insiders say she lost 20 pounds in recent weeks and has been working out with fitness pro Tee Sorgee.
"It's more of a mind-body thing for her," a source said. "She believe in exercise that she enjoys, doing strength work as opposed to intense card.
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Aguilera, 32, is a mother to Max, 5. She has been dating Rutler since 2010.