The countdown is on! Big Brother 27 premieres in just one week (July 10 on CBS), and host Julie Chen Moonves is teasing a season packed with mind-bending twists, hidden secrets, and a mystery houseguest who will “wreak havoc” like never before.

🚪 Welcome to Hotel Mystère
This season’s theme transforms the Big Brother house into a luxurious, enigmatic hotel—complete with 1920s-style train bunk beds (a callback to Season 1) and hidden clues scattered throughout.
🔍 “You’ve got to be a detective this year,” Chen Moonves tells Entertainment Weekly. “Things are not what they appear.”
🔥 Premiere Night’s Explosive Twists
The 90-minute premiere will introduce three major twists:
1. The Masked Visitor
👤 “More disruptive than Ainsley last year.”
💥 “Will wreak havoc on a deeper, three-dimensional level.”
2. The Secret Accomplice
🤝 Works with the mystery guest.
🎭 Their success (or failure) will dramatically impact the game.
3. The Polarizing Mystery Houseguest
😲 “I was shocked when I found out who it was!” — Julie Chen Moonves
⚡ “Epic… but will trigger strong reactions—both positive and negative.”
🔮 Who could it be?
- A notorious Big Brother villain (Paul Abrahamian? Evel Dick?)?
- A controversial reality TV star?
- Or even a political figure (like Celebrity Big Brother’s Anthony Scaramucci)?
🏨 Inside the House: Secrets & Surprises
Chen Moonves hints that nothing in the house is as it seems—even ordinary objects may hold dual meanings.
🛏️ Her favorite feature? The Orient Express-inspired bunk beds, bringing back Season 1 nostalgia with a glamorous twist.
🎭 Expect the Unexpected… All Season Long
Unlike past seasons, observation skills will be key—houseguests must decode hidden messages and adapt to ever-changing game dynamics.
💬 Julie’s Final Tease:
“Slowly, things will start revealing themselves… but not everyone will be happy.”
📅 Mark Your Calendars
📺 Big Brother 27 Premieres
🗓 Wednesday, July 10 | ⏰ 8/7c on CBS