Ariana Grande maybe a top notch singer, but she is however swamped with bad behavior rumors. As per several news websites, even Grande's team is sick and tired of her "diva ways."

A report which was released by Inquisitr, an insider told the OK! Magazine that: "They tired of dealing with her," a source told OK! Magazine. "If she keeps this up, her career will take a hit."

As per the New York Daily News, the singer demanded that she should use the conference room for her personal dressing room.

"Before she got there she made security clear out the entire lobby. Even if you were a guest at the hotel you had to clear out. No one could sit in the lobby, but she came in the back. She took up a unisex bathroom with her mother and father and put two bodyguards outside."

In addition to having the whole area cleared out, an insider also overheard Grande asking a hotel staff if they could "get rid" on several paparazzi outside the said hotel.

"She had an entourage of 21 people with her, maybe more. I stopped counting. Her mother was primping her and her brother was with her, too."

Just last month, news broke out that Ariana "upset radio host Jonathan Ross" after cancelling her scheduled gig for his live show. It was also reported that Grande is supposed to appear on his London studio, but she arrived late causing them to just cancel the entire show.

"Ariana is in town. We were told she would be in the car at 6pm to be here for 7pm, then it got to 7pm and she was still not in the car, then 7:30pm and she is still not in the motherf****** car. So I don't think we can hold out much hope. We are going to give Ariana the benefit of the doubt and not say anything mean or judgmental. I apologize to anyone who might have come along hoping to see her."