A former 'Big Brother' player – and winner – was unveiled as the mystery 17th houseguest during the season 27 premiere.

Big Brother follows a group of people living together in a house outfitted with more than 100 cameras and 100 microphones, recording their every move 24 hours a day. Each week, someone will be voted out of the house, with the last remaining Houseguest receiving the grand prize of $750,000.

Just when Big Brother fans couldn't be more hyped for the season 27 premiere, Men's Journal can reveal an exclusive first look from the episode – and there's a major tease.In a brand new photo, a "Missing" sign is shown and one single,

“Big Brother” fans, the wait is finally almost over. With summer underway, Season 27 is coming up quickly, and it’s one you don’t want to miss. Look forward to meeting a new group of Houseguests who are bringing a perfect combination of A-game and ...

Sleeper car bunk room: Behind a secret entrance, this train-themed bedroom straight out of a murder mystery novel contains bunkbeds for six Houseguests (the first time the BB house has had bunk beds since season one!) and a sleek Art Deco design.

The new season of the hit reality competition series "Big Brother" includes new elements including the introduction of a mysterious masked visitor with a secret accomplice and an unknown houseguest to be revealed sometime during the season.

"Big Brother" is back with the season 27 premiere Thursday. Here is everything to know about the episode and the new season.