That’s right, Rachel Reilly the comp beast is officially back. The “Big Brother 13” champion is Head of Household this week on “Big Brother 27.” Her victory comes after her ally Ava’s Pearl HoH reign got out a major player on the other side of the house: Zach Cornell.

Big Brother Season 27 Week 6 revealed Rachel Rilley as the new Head of Household. With that, she shocked everyone after teaming up with fellow housemate Keanu.

Big Brother's Rachel Reilly and Morgan Pope face off in a dramatic confrontation is Us Weekly's exclusive clip

The Veto competition and meeting will play out during the next episode, which airs on CBS and Paramount+ on Wednesday, August 20, at 8 p.m. ET. The live BB Blockbuster competition and eviction airs on Thursday, August 21, at 8 p.m. ET.

Watch Big Brother Season 27 and the live feeds right now on Paramount+. Opt for its Essential plan or go ad-free and get double the catalog with Showtime through the Premium plan from $12.99 a month. Alternatively, get 12 months for the price of 10 with its annual plan. View Deal

Big Brother alum Janelle Pierzina discusses how Rachel Reilly’s improved social game gives her an advantage in season 27, focusing on alliances, strategy, and interactions in the house.

‘Big Brother 18’: Rachel and Elissa Reilly Talk This Season’s Sibling Twist and Controversial Comments THR caught up with the Reilly sisters to get their take on season 18.

Zach Cornell made one of the most controversial moves, or non-moves, in "Big Brother" history. Here's what he has to say now that he's out the house.

The former Big Brother alum has recently made her surprise comeback in Big Brother season 27. She is the winner of Big Brother season 13.