The first batch of housemates included a Catholic lingerie model, a Playboy Bunny with a law degree and a former Kylie Minogue backup singer.
But before you catch up on who's who, take a gander at some of these funny tweets and reactions below...
WHY IS MY MUM ON BIG BROTHER WHEN SHE SAID SHES GOING ON A BUSINESS TRIP?— Jords (@_069027) June 5, 2014
Big Brother hasn't been the same since.. pic.twitter.com/jldwCj9l7J— Jamster (@jamster83) June 5, 2014
Straight out of central casting, this one. #bigbrother— Steven Perkins (@stevenperkins) June 5, 2014
Well there goes the next 3 months of my life.. #bbuk— V I N C E! (@vincey1991) June 5, 2014
Tamara isn't a fan of the unemployed. She won't enjoy life two weeks after #bbuk then.— Alex Fletcher (@alexanderfletch) June 5, 2014
I miss the days of everyday people going into the #bbuk house.. I mean now you either have to be a business person, a model or a slapper— Alexander Morris (@aleeex_morris) June 6, 2014
A model who doesn't believe in sex, birth control, or homosexuality? How does that happen? #BBUK— Bigbrothergossip (@bigbrothrgossip) June 6, 2014
Just been thinking & I agree with some peoples comments I thought this was normal BB but some have lived a small celeb life style #bbuk— Coral x (@coral_xo) June 6, 2014
I find it fun that Channel 5 has a product placement deal with Microsoft but only an app for apple LOL #bbuk— BB Nutters (@BBNutters) June 6, 2014