Jennifer Lopez is thought to be 'completely freaked out' as disturbed stalker John Dubis was discovered living in her pool house for six days while she was away from home.

Despite J-Lo's security team knocking around the place for the whole week between August 3rd and 9th 2013, he went undetected until one employee confronted him.

According to the New York Post, he claimed to be her husband and the father of her children as the police arrived to arrest him and unnervingly admitted to pleasuring himself in the singer's yard. If that wasn't creepy enough, he regularly posted photographs online and other posts about his 'wife Jenny'. Among the posts was a picture of the J-Lo's lawn and a photo of her initials etched in a tree trunk captioned 'Some more david and jenny art'.

The 49-year-old retired fireman is undergoing psychiatric evaluation and has been charged with several offences including second-degree burglary, two misdemeanours and fourth-degree stalking.

On hearing the news, sources close to the star revealed that she was 'completely freaked out', is reassessing security measures for her home and is getting a restraining order, according to the Daily Mail.

One neighbour near to the $10 million Hamptons property revealed to the NY Post, 'Come to think of it, I did find it odd when I saw a man standing outside her driveway with the gate closed. I figured he was just part of her security crew.' Dubis will appear in court on August 28th.

Jennifer Lopez on red carpet
Sources reveal Jen is 'freaked out' by news

Jennifer Lopez performing
J-Lo was away from the $10 million property at the time