Big Brother 27,' hosted by Julie Chen Moonves, premieres on Thursday,. See which houseguests are in power as HoH, who is nominated and who has been evicted so far

Rachel Reilly is back in the Big Brother house, and fans are either cheering or ready to change the channel. The Season 13 champ made a surprise entrance on the July 10 premiere of Big Brother 27 as the long-rumored “mystery houseguest,” after CBS teased her return with a week of cryptic clues.

"So there's going to be a strong reaction in both directions for this mystery Houseguest."Ahead of season 27, here are the 12 best Big Brother seasons to watch, all of which are available to stream on Paramount+.

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

Rachel Reilly and Brendon Villegas met on 'Big Brother 12' and built a lasting marriage after winning fans with their showmance

‘Big Brother’ Host Shades the ‘Bachelor’ Franchise’s Failed Romances originally appeared on Parade. Julie Chen Moonves believes Big Brother is better at producing lasting love stories than the Bachelor franchise.

Big Brother season 27 premieres on Thursday, July 10, 2025. The cast for the new season has not yet been revealed. Viewers can watch the show on CBS, their local CBS network, or Paramount+. "Big Brother" is coming back soon with a brand new season.

Big Brother returns with its 27th season and a mystery-themed twist. 16 contestants have entered the new Hotel Mystère house. Here's who’s playing and what’s new.