The former TOWIE star turned 35 on Sunday, 31 January and in scenes to air in tonight's episode we'll see the house marking her big day.
Well, after a few disasters…
It started okay when Gemma was called to the Diary Room for a little celebration involving a slice of birthday cake, a party hat and music, resulting in this AMAZING photo above. Happy birthday Gemma!
But unknown to Gemma, while she was in there, the housemates were tasked with making it the worst birthday ever. If they succeeded, they would win a bunch of treats and a party for Gemma later that day.
So the housemates got stuck in, faking feuds, having food fights, turning the attentions back to themselves and drinking all Gemma's beloved brandy.
Luckily for them, they passed the task and won the treats!
And what do you get a glamorous Essex girl who has complained about the state of her hair? Well, a proper, real life, actual Essex blow dry, of course!
As well as picking up the blow dry – which we hope goes better than her last blow dry in the house – Gemma also won birthday cards from her family and friends, a party with food and cocktails and dancing, and 15 minutes with a real life Shetland pony called Tony. Um, random, no?!
Gemma certainly had a better end to the day than the start. All the hot water and electrical appliances were turned off after Stephanie Davis broke the rules regarding discussion of nominations, then Gemma learned she would be facing the public vote on Tuesday.
Tonight, Monday 1st February 9pm on Channel 5