Julie Chen Moonves teased 'Big Brother 27' twists, including a secret accomplice, a masked visitor and a 'polarizing' mystery ...

Chen Moonves tells Entertainment Weekly that she was shocked when told who the mystery houseguest was. And she goes on to say ...

"Big Brother" is back this summer with Season 27, where the official theme will be "Big Brother: A Summer of Mystery." ...

I never expected that person. And I was very excited because, in my opinion, getting that person is epic,” the host said.

Ahead of the "Big Brother" Season 27 premiere, CBS has unveiled the theme and first-look photos of the new house, Hotel ...

Julie Chen Moonves returns to host Big Brother Season 27, which premieres with a 90-minute episode on Thursday, July 10 at 8 ...

While Big Brother will be gifting us 90-minute episodes right out of the gate and all season long, we now have an idea as to ...

A first look at the 'Big Brother 27' house teases a mystery theme, a 'Mystery Houseguest' and twists that fans won’t see ...

There will also be a mystery houseguest, along with a masked visitor and secret accomplice on the season premiere.

"Big Brother" is promising a summer of mystery when Season 27 premieres next week, as seen by CBS's new first-look images of ...