Tiffany Taeyeon's weight loss pleases fans

A new photo of Tiffany Taeyeon is causing interest amongst netizens.

The idol recently uploaded a selca to her official fan cafe from the set of popular K-Drama Busan Heights, where she's currently filming a five-episode guest spot. The photo shows Tiffany sporting a sexy and mature look to match the character she is portraying, but it's not her new image that's catching the attention of fans -- it's her weight loss.

The Girls' Revolution leader appears bony and fragile in the selca, with rake thin arms and a tiny, breakable waist. Compared to a previous photo taken back in July for a Thai tourism CF, you can see that the idol is lacking the eye-catching curves that originally turned her into one of K-Pop's top sex symbols.

Netizens have been eager to voice their opinion on Tiffany's weight loss, with most reacting extremely positively to the star's slimmed down physique.

Comments included: "Please continue to strive hard to lose more weight, and then you will become even more gorgeous than before," "Tiffany looks beautiful, like Yuri's twin but not as fat," and "Wow, she is so skinny, I am going to stop eating so I can look like my favorite unnie."

During a recent appearance on MBC's Golden Fishery, Tiffany revealed that she was dieting to lose weight for an upcoming mystery photoshoot with top celebrity photographer, Ellen von Unwerth. Dieting on top of a busy schedule would explain Tiff's new look, but according to tabloid magazine K-Scandal, there's a lot more to her slimmer physique than just a busy schedule.

"Tiffany has become obsessed with being thin," a source revealed exclusively in this week's issue of K-Scandal. "She used to pride herself on her curves, but ever since HyunA Knowles joined White Entertainment, she's felt insecure about her weight. It doesn't help that Suzy Sooyoung is also incredibly thin, which only adds to the pressure for Tiffany to outdo her."

"When Tiffany wakes up, she'll have a glass of water and a few cherry tomatoes for breakfast," the source continued. "Then for lunch she'll have a piece of sliced watermelon inside a lettuce leaf. She won't eat any other fruit because she says they contain too much sugar, and she won't eat dinner for fear of sleeping on a full stomach. She works so hard that it's easy for her to keep her mind off of eating, but she usually ends up having a meltdown at least once a fortnight, and will binge on her favorite foods like fried octopus and French pastries."

"Tiffany's determined to be the most beautiful Idol in all of Asia, and with broadcasters and managers constantly complimenting her on her weight loss and various surgeries, she doesn't realize that what she's doing is dangerous."

Tiffany is currently wrapping up her Japanese promotions with the Heathers and preparing to return to Korea to begin recording her first solo album. She's also rumored to be starring in an as-yet-untitled horror film and launching a signature perfume, which should keep her busy over the next few months. Until then, keep an eye out for her guest-starring role on Busan Heights, where she'll be playing the meddling younger sister of Lee Yoon Ji's character, who comes to town to try and blackmail her sister into murdering her new husband.