Swedish House Mafia is a Swedish electronic music supergroup formed in Stockholm in 2008. The trio consists of Axwell, Steve Angello, and Sebastian Ingrosso, all established DJ-producers who were already active in the house music scene before joining together. The group is associated with house, progressive house, and electro house, and became widely known in the early 2010s through releases such as "One (Your Name)" and "Don't You Worry Child". The act has been active in two main periods, originally from 2008 to 2013 and again from 2018 onward. In live settings, Swedish House Mafia performs as a DJ-led electronic act, typically built around club and festival-scale production rather than a traditional band format. Their work is linked to the international EDM rise of the early 2010s.