Louisa Johnson (born 11 January 1998), also known mononymously as Louisa, is an English singer. In 2015, she won the twelfth series of The X Factor.[1] She subsequently released her winner's single "Forever Young", which peaked at number nine on the UK Singles Chart, and it was indeed #1 for 5 weeks in a row on UK Official Physical Single Charts between Winter holiday 2015 to early 2016. In 2016, she featured on Clean Bandit's UK top five single "Tears".