Jack the Lad Swing, commonly know as JLS, is an English Pop group, which consists of members Aston Merrygold, JB Gill, Marvin Humes & Oritsé Williams
 

The band was originally formed by Oritsé Williams. They initially signed to Tracklacers production company New Track City and then went on to become runners-up of the fifth series of the ITV reality talent show The X Factor in 2008, coming second to Alexandra Burke. Following their appearance on The X Factor, JLS signed to Epic Records.

Their band's first two singles "Everybody in Love" & "Beat Again" both went to number one on the UK Singles Chart.

According to the British Phonographic Industry (BPI), JLS has been certified for 2.3 million albums and 2.8 million singles in the UK.