Hot "Sports Illustrated" supermodel Kate Upton is one of the leading models in the world today. But recent reports reveal that her career might suffer because of her "diva-like behavior."

In a report from NY Post, the 22-year-old voluptuous supermodel is reportedly exhibiting a negative attitude recently in her photoshoots.

The model, whose career has skyrocketed after she graced the Sports Illustrated swimwear catalog for two years, is now behaving like a diva, according to sources.

"She became really unappreciative of her success," an insider said.

She added, "It totally went to her head. She didn't understand that people had taken a chance on her."

"The Other Woman" actress even asks for photographer approval during her photo shoots.

The report also said that Kate Upton, who is considered as the hottest model in the world, is refusing to be photographed with other models, a behavior that wasn't exhibited by the other supermodels.

"Even Kate Moss and Naomi Campbell embrace new models and shoot with them," another source revealed.

"If you look at people with those long careers, they know how to give back."

Rumors that her career is going down can be observed when she was noticeably absent in the Sports Illustrated Swimsuit issue this year.

Her recent endorsement, the video game "Game of War" also gathered flak as she made "people wonder whether she should have stuck to modeling."

According to a tweet from AdWeek, "This campaign does the impossible: making Kate Upton seem totally wooden."

Hot supermodel Kate Upton was seen in the video game's ad depicting a Grecian goddess whose white ensemble showed off her curves.

This showed that the baseball player Justin Verlander's girlfriend is not as versatile as other supermodels who also made it big in other fields, a Yahoo report said.

A Hollywood Reporter even noted, "Upton does what she's called upon to do, look great in a bikini, and rarely has more than one line to speak at a time."