It is only a matter of a few days before Big Brother Season 21 officially kick things off. Having only less than a week before the new season premieres, the fans are now wondering what the theme might be for this installment.

As you may know, each season of Big Brother features a specific theme wherein the house and obstacles revolve around. In recalling the previous season, the theme was set in technology.

Almost all of the challenges and obstacles inside the house are related to technology. The housemates even got the chance to "hack" for their co-housemates' eliminations and nominations. Accordingly, learning the theme beforehand could already give the viewers an idea about the premise of the season.

For the upcoming season of the show, the theme is not yet officially revealed as per Soap Dirt. But there are already hints and clues published all over the internet.

As it happens, TV Guide revealed in the most recent publication that the theme of the Big Brother Season 21 would be "The Great Outdoors." And having quotes from the producer, along with the show's host, Julie Chen Moonves, it strengthened the theory that the new season will be a camp-like season.

These revelations spiraled out further causing a lot of fans and viewers to speculate more about the theme of the upcoming season. And this is where the terms, "Camp BB21," came from.

It also made sense as to why the keys given to the housemates are all wooden. Accordingly, the fans immediately looked out for more clues after the housemates' introduction interviews premiered on Monday.

As for Cartermatt, the publication largely believes that the new season will feature an outdoor theme that is not friendly. Also, they claimed that the first challenge would be in a forest-like setting that will force the houseguests to find their way back to their real home, inside the house.

On another note, the speculations about the houseguests were already put to rest after Monday's interview special. As it happened, the houseguests were finally revealed, and it has been confirmed that Big Brother Season 21 is not an all-star installment.

The houseguests are all new faces. Cheap Sheet claimed that the new set is "somewhat diverse." There will be a total of 15 houseguests, eight of them are women, and obviously, seven of them are men.

Big Brother Season 21 will premiere on June 25 and 26. It will be a two-day event, so, things will clear out on these dates.