(Cover) - EN Showbiz - American Idol staff are terrified Jennifer Lopez has angered a ghost who haunts people linked to the show.

The singer-and-actress was announced as one of the new judges on the US talent contest last month, alongside Aerosmith singer Steven Tyler. During the big reveal host Ryan Seacrests microphone stopped working and mysterious smoke swamped the stage, causing some to worry dark forces could be at work.

In 2009, it was claimed an angry poltergeist was haunting the house where the American Idol contestants were living. The spirit was named Phyllis, and was said to be angry she wasnt getting a shot at the spotlight. Those familiar with the time are convinced Phyllis is back, and as irritable as ever.

Many staffer think its Phyllis and that shes jealous of Jennifer, a source told National Enquirer. Theres no good explanation for what happened, and we all think its really, really creepy.

Staff have vowed to keep a close eye out backstage, and make a note of any unexplained happenings so they can try to establish a pattern. (C) Cover Media