Related Information for Jls There are at least two artists under the name JLS:1. JLS (Jack the Lad Swing), an English boy band2. JLS (Jodio Loco Sucio), a Dominican rock band1. JLS (an initialism of Jack the Lad Swing) are a British boyband from London, who were runners-up in the fifth series of ITV reality talent show The X Factor in 2008, coming second to Alexandra Burke. The group consists of Aston Merrygold, Marvin Humes, Jonathan "JB" Gill, and Oritsé Williams. The group have cur.. read more