Slowly getting back to her career following giving birth to son Max in January, Christina Aguilera was spotted out at the recording studio in Los Angeles last night (May 20).

Along with working on new music, Aguilera’s also been busily hitting the gym to aid her in losing 40 pounds since welcoming her son into the world - working out for 90-minutes a day, five-day-a-week. She also cut out white bread from her diet.