London, Apr 17 : Pop star Britney Spears, who has been in the news for her growing fondness for her back-up dancer Chase Benz, has left the latter's mother fuming.

Chase Benz's mother Diane insists that he is already engaged.

According to reports, Benz girlfriend Tessa Campbell is also infuriated over the alleged linkup between him and Britney.

"Chase has already got a girlfriend. Her name is Tessa Campbell and she is a fantastic girl. Chase comes back to Tennessee whenever he can to see her," the Mirror quoted Diane as saying.

"They've been going out for three years - she's the same age and they are great together. She's so sweet," she added.

Britney, who has a history of dating her back-up dancers, is said to have been dating Benz for three weeks.

"Britney was all over Chase from the word go. He was determined to keep things professional but Britney has been making it difficult by being extremely suggestive. Chase has been dating Tessa, his childhood sweetheart, for over three years and she is livid about the reports... as is Chase's mum. Diane has ordered him to stay away from Britney and made it clear she's not welcome in the family home," a source said.

Britney's former husband and father of her two kids, Kevin Federline, was also once her backup dancer. (ANI)