Buzz: Christina Aguilera’s Photo Shoot Fiasco! Star has the scoop on her meltdown.

STAR HAS THE SCOOP ON THE DIVA’S EMOTIONAL TAILSPIN.

CHRISTINA Aguilera’s Liberation Tour certainly hasn’t been what a girl wants. Since kicking off in September, the troubled tour — the pop diva’s first in more than a decade — has been plagued by poor sales, canceled shows and mediocre reviews. Christina has tried to put on a brave face, but the strain was clearly showing when, sources say, she wasn’t even able to muster a smile for a recent photo shoot. “She was supposed to do a magazine interview and then take pictures on location in Northern California. A whole crew had flown out,” a spy tells Star. “They wanted Christina to look sultry, but she just looked sad and distracted in the test photos.” While the singer, 37, has been steadily posting gorgeous concert photos on Instagram, the reality hasn’t been quite as pretty. The mom-of-two canceled shows in Detroit and Ontario early last month after losing her voice, and another in Indio, Calif., on Oct. 25, due to “safety concerns.” And she’s faced backlash from her fans, who have criticized her performances and inability to sell out stadiums. “She has been disappointing a lot of people,” a fan noted on social media before branding her “so unprofessional.” There’s even been a brouhaha over her charging more for plus-size merchandise than regular sizes! “It just seems like everything had piled on top of her and she just kind of deflated,” says a photo shoot insider, adding that Christina “was incredibly apologetic” about the sunk campaign, which she rescheduled for mid-November after her tour wraps on the 13th. “All these problems were bound to have an effect on her. I’ll bet she can’t wait for the tour to be over!”