The former X Factor contestant couldn't help weeping after a letter from home revealed his brother's happy baby news.
Jake's brother Adam told him in the letter: "Hey bro, me and Mel have got some great news! We are having a baby! Thought this would make you smile as you're going to be an uncle! Love you little bro!"
A delighted looking Jake was seen wiping away tears as his campmates congratulated him.
He later told the Bush Telegraph: "I can't believe it, to be honest. I'm going to be an uncle and it's made it so worthwhile being here. Knowing they're proud of me and also knowing they have some good news."
Jake was among the lucky contestants who were given a letter from home as a task reward.
Each celebrity had to win a letter for one of their fellow campmates by memorising a certain number of words that appeared briefly in front of them. If they remembered a certain number, they got the letter for their co-star, if they didn't the letter went into the shredder.
Among those who didn't get letters were Kendra Wilkinson, who broke down in tears as she spoke about how much she missed her family, which includes husband Hank and children Hank Jr and Alijah.
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