The 22-year-old singer revealed to The Sun on Sunday about his sexuality after deciding he was done with keeping it a secret.
He said: "I spoke to Louis about this and he said, 'put it this way, both of my big boy bands had a gay member in them.' So he said it fits the formula quite well!
"Every boy band has got to have a gay one! And Louis just said 'do it'."
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Jaymi, who came out to his parents when he was 14 and has been in a committed relationship for three years, was inspired to come out after receiving a tweet from a fan.
He explained: "I got a tweet from a boy who must have been 13 or 14 asking if the rumours that I was gay were true.
"He said he really wished I could be out because he didn't have anyone to look up to and was finding it really hard to fit in and tell his parents."
Jaymi is adamant however that his decision to come out wasn't simply a ploy to gain more votes.
He admitted: "I don't want people to think I have hidden this to gain votes because I am so proud of who I am. I hope people respect me for being honest."
His Union J bandmates- George Shelley, Josh Cuthbert and JJ Hamblett- have all been aware of Jaymi's sexuality since the band formed.
He said: "They have always supported me with doing this.
"I didn't want to do it in five years' time when I have made money and had a career. I don't think anyone should have to hide who they are."
Now that Jaymi has set the record straight, he is looking to move forward with Union J and enjoy a successful career.
He said: "I'd love my career to take off to the heights of One Direction.
"But not enough people in the music industry are open about their sexuality."
"It is a brave move. There could be negative people, but they are just sad and stuck 20 years ago."