Big Brother All Stars

Big Brother All Stars is the 20th season of Big Brother (US)

Twists
- All stars, the entire cast was an all-stars cast who got to play for a second shot at winning the game.

- Battle of the Block, During the first six weeks two pairs of nominees battled for safety.

- Den of Temptation, for three weeks America got to vote for somebody to get and advantage in the game.

- Temptation Competition, for three weeks the houseguests got to battle for safety.