Jay-Z ‘taking 50 rooms for his entourage for Vegas hotel opening’

New York: Rapper Jay-Z is apparently booking 50 rooms for the lavish opening of the Cosmopolitan of Las Vegas.

According to a source, the star – who`s performing at the event along with Coldplay on New Year`s Eve – has "requested the rooms for his entourage and for his personal security”.

As a result, hotel managers have had to rearrange accommodations for other important guests at the bash, produced by celebrity event designer Colin Cowie.

Celebs expected include Jennifer Lopez, Marc Anthony, Alex Rodriguez, Mark Wahlberg, Kristin Davis, Ellen Pompeo, Kellan Lutz, Jamie-Lynn Sigler, Olivia Munn, Emmy Rossum, Jessica Szohr, Mark Salling and Selita Ebanks.

Neither Jay`s rep nor any of hotel spokesmen have disclosed the detail.

"We are looking forward to welcoming Jay-Z to the Cosmopolitan of Las Vegas, and as is our policy, we don``t disclose details regarding a guest``s accommodations or other arrangements while at the resort," the New York Post quoted a hotel rep as saying.