Union J have been one man down since the departure of George Shelley to focus on other projects.
Now they've managed to fill the hole with a familiar face - Stereo Kicks' Casey Johnson.
Casey, who came fifth on the 2014 series of the X Factor with the eight-piece boy band, joins Josh Cuthbert, JJ Hamblett and Jaymi Hensley, who found fame when they came fourth on the same show in 2012.
Casey told The Sun: "I have always wanted to be in a band, not a choir.
"What I was in before wasn't like a boyband. Stereo Kicks was more of a choir."
Stereo Kicks released one single, Love Me So, in June last year but failed to land a major record deal and announced their split on Facebook just a month later.
It seemed there was no love lost between Casey and the band.
He said: "There wasn't really any chemistry. There were a lot of egos."
Once the news was announced though, he quickly defended himself from the choir comment on Twitter.
Casey added: "Union J were always a much bigger band than Stereo Kicks.
"These guys are more mature and I feel already that this is the type of music I want to do."
The Union J boys revealed that they had yet to break the news of Casey's signing to George.
George, who came second on the last series of I'm A Celebrity, left the band in March this year to focus on his broadcasting career, with a new job as a co-presenter of the Capital FM breakfast show.