Famous as a member of The X Factor UK's 2014 season Stereo Kicks boy band, Johnson left the competition after his band's elimination in Week 8. He went on to become a member of the band Union J.
He auditioned for The X Factor with a cover of Olly Murs' song "Please Don't Let Me Go."
His Stereo Kicks band competed against a number of other X Factor groups, including Only The Young and Overload Generation.
He was born and raised in London, England. He has a brother named Chet. He briefly dated singer Betsy-Blue English until their breakup in April 2017. He began dating his Single AF co-star Marnie Simpson later that same year.
His seven Stereo Kicks bandmates were Charlie Jones, Chris Leonard, Barclay Beales, James Graham, Tom Mann, Jake Sims, and Reece Bibby.
