The most popular pick, handsdown, of who the mystery guest is would be none other than Rachel Reilly. She already made two ...

As fans streaming Big Brother online for early results of the Week 1 veto competition or a clue at who is going home were ...

Rachel Reilly, winner of Big Brother 13, was unveiled as the "mystery houseguest" competing again this summer on season ...

Las Vegas(KLAS)-Julie Chen Moonves has been the host of Big Brother since day one, July 5, 2000 and they are celebrating 25 ...

Before the season 27 premiere, many fans speculated that the mystery houseguest could be anyone from Celebrity Big Brother UK ...

Grab a life vest, floaters, because look who just resurfaced back in the Big Brother house.

"Big Brother" Season 27 contestants better grab a life vest, because star Rachel Reilly is checking in as the 17th houseguest ...

The 27th season of Big Brother kicks off with a wild premiere that finally reveals who the "Mystery Houseguest" is before ...

"Big Brother" is set to premiere this week. For Season 27 of the hit reality competition series, the official theme will be ...

Big Brother follows a group of people living together in a house outfitted with more than 100 cameras and 100 microphones, ...

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

"Big Brother" revealed its mystery houseguest for season 27 Thursday: the legendary Rachel Reilly. Reilly entered the house ...