Famous for his membership in Stereo Kicks, a boy band that was featured in the 2014 season of The X Factor UK, Mann had attracted nearly 140,000 Twitter followers by late 2014. Prior to appearing on The X Factor, he recorded EPs titled Decisions and The World Goes Around.
He and his fellow Stereo Kicks members defeated three other X Factor Series 11 bands: Blonde Electra, Only the Young, and Overload Generation.
He and Reece Bibby both became famous for their membership in Stereo Kicks, as did their bandmates Chris Leonard, James Graham, Barclay Beales, Casey Johnson, Jake Sims, and Charlie Jones.
He failed the bootcamp stage of The X Factor; however, believing him too talented to have his music journey cut so short, the show's judges kept him on as a member of Stereo Kicks.
He was born and raised in Southampton, England.