The frontman has revealed that he spent many years trying to impress critics and show them the potential that the group had before their success with 'Sex On Fire'.
Speaking to Q, the singer said: "A lot of people talked bad about my songwriting at the start, especially in America. They made us out to be a joke band and I spent the rest of my career trying to prove them wrong. I get online and I read what people are saying and if people say something negative, man, it really hurts me."
Kings of Leon recently surprised fans during a London gig by showcasing four brand new tracks from their forthcoming album.