Ariana Grande's longtime choreographer Isaac Calpito reportedly quit following his "inappropriate conduct," amid recent rumors that he grew tired of the pop star's diva attitude.

"Isaac is fueling a lot of nonsense about Ariana," a source close to the "Problem" hitmaker told RadarOnline. "There is no reason for him to want to attack her, and in fact, he's the one who actually has something to hide."

Calpito reportedly got suspended, due to complaints made by many women in Grande's team for his "inappropriate behavior."

"They did a thorough investigation with an independent investigator," the source said. "There was a lengthy investigation report, and once the results came back, he resigned. Basically, the result of the investigation demonstrated there were serious issues, and he chose to step down."

However, the "Break Free" singer's life coach shut down the allegations in an interview with the same website.

"These accusations are completely untrue. They're completely false," he said. "It stems from a group of people in Ariana's camp that wanted me out for various reasons. They made it very uncomfortable for me, and so I resigned. I'm not there anymore. ... I'm very happy to be not there anymore. I think her behavior speaks for itself."

Calpito also took to his Twitter account to further address the claims:

Related