Before One Direction took the world by storm, a different cabal of lads with slick moves and sublime harmonies catapulted from relative obscurity to X Factor stardom, re-establishing the UK's primacy in producing polished, sweet-sounding boy bands. True to their name—the letters stand for Jack the Lad Swing—JLS updated silky-smooth new jack swing for the 21st century, weaving together sultry crooning with the laser synths and bouncy beats of house music. After releasing four albums of buoyant dance pop, they amicably disbanded in 2013, opting to end on a high note.