Jimmy Heagerty was evicted by a vote of 9-2 on Thursday, August 7, after his ally and friend Mickey Lee put him on the block as a replacement nominee. Later that night, Ava Pearl won the Head of Household competition.

A new Head of Household is ready to shake up the game. Following Thursday's eviction episode, the "Big Brother 27" houseguests competed in an HOH competition. Sign up for Paramount+ Start the day smarter.

Big Brother season 27’s week 4 served up enough drama to keep fans hooked as a new Head of Household took over and another one of the contestants got thrown out. Here are this week’s highlights of who became the HoH and who got evicted from the household.