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

Men over the age of 50 in Big Brother are often a crapshoot. It can be hard for them to warm up to a house full of people decades younger than them, but for every Kenney Kelley and Steve Arienta that went home pre-jury, there's a Cliff Hogg and Jerry MacDonald who had a deep run even if they didn't stand a great chance at winning.

Kelley Jorgensen, a 29-year-old web designer and self-described farm kid from South Dakota, will compete on the CBS reality show "Big Brother."

A mystery houseguest is shaking up Big Brother Season 27 — and Men’s Journal has the exclusive final clue to who that person is.CBS has provided the last hint ahead of the premiere in the form of a photo,

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.