Since George Shelley's stint on I'm A Celeb, a lot has changed.
The singer said goodbye to Union J a couple of months ago, with many saying that fame went straight to his head.
Many speculated as to whether the lads would go on as a three piece or find someone new. Well, they just announced George's replacement, and if you're a fan of the X Factor then you probably already know him well.
Union J took to Twitter last night to tell the news:
We are super excited to welcome Casey to the band! We love this boy and can't wait for the future
— Union J (@UnionJworld) May 6, 2016
Yep, Casey from Stereo Kicks. Remember them? Casey also had a little announcement of his own:
It's announced! I'm pleased to let you all know that I'm the new member of Union J https://t.co/4NaYZTyIlI
— Casey Johnson (@CaseyCodyJ) May 6, 2016
We wish them all the best!