There's been plenty of rumours, speculation and leaks about what will happen on launch night, and here's the latest!
Show bosses have promised an opening week of twists and games as soon as the new bunch of housemates enter on Tuesday night, with Emma Willis once again in charge and overseeing proceedings.
Check out the latest stories below and tune in to Big Brother 2015 from 9PM on Channel 5 TONIGHT.
An launch night twist?! - Reports have suggested that an opening night twist will see the housemates split into groups.
Big Brother 2015 Diary Room chair! - Take a look at the brand new Diary Room chair for this year's series, it's.. interesting.
Meet the Big Brother housemates HERE - In a Big Brother first, all of this year's housemates have been revealed ahead of launch night.
PICTURES! Big Brother 2015 house revealed! - If you haven't seen it yet, check out this year's glam 1960's Mad Mens themed house with a tour of all the rooms.
What time does Big Brother 2015 start tonight? - Finally, get all you need to know about tonight's launch show and all of this year's Timebomb series.