This year's theme is all about power - hence the Power Trip title of the show - which means housemates will get the chance to seize power, keep it, boss the others around and manipulate each other. Ooh!
As always, however, it will only work with the right group of housemates. So, who will be charming us, annoying us and making us swoon this summer? The first group of housemates entered tonight and we'll meet the rest of them tomorrow.
Browse the gallery to meet the first round of housemates:
Copyright: Channel 5
Emma Willis returns as host once again, doing double duties alongside Rylan Clark on Big Brother's Bit On The Side (busy lady!), while Rylan and Iain Lee take charge on Big Brother's Bit On The Psych.
Luisa Zissman is joining the show this year as a contributor and will be able to give an insider's view of action following her own stint on Celebrity Big Brother last year.
Big Brother airs nightly on Channel 5.
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