BIG Brother hosts AJ Odudu and Will Best have delivered an important message ahead of the new series launch tonight.
The iconic reality show is returning after a five-year break and will air on ITV.
AJ and Will tonight present a special launch on ITV1 before the programme airs nightly on ITV2 - but gave audiences a stern warning beforehand.
Will said: "We are so excited to see what all our amazing housemates get up to this series.
"There's going to be ups and downs, twists and turns - it's going to be so great."
AJ agreed, adding: "It's going to be so so good, but please do remember that all our housemates are real people with real lives.
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"If you wouldn't say anything to them in person, please watch out what you say to them online."
It comes after 2006 Celebrity Big Brother winner Chantelle Houghton opened up about how fame ruined her life.
Will continued: "Absolutely. We all just want to be fair and kind to everybody and that way we can all enjoy this series together and we can support our housemates on the show and beyond."
AJ insisted: "Let's make this series the most positive one yet."
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The full cast is yet to be revealed, the show's official Instagram account gave fans a sneak peek at who will be taking part.
Producers shared a clip of all the upcoming contestants' eyes looking directly into the camera, with the caption: "Blink if you're heading into the Big Brother House."
Fans will even be able to watch the housemates live from the famous house in Garden Studios in North West London.