The Shapeshifters is the current alias of English house producer Simon Marlin and a former duo comprising Marlin and Swedish producer Max Reich, from Gothenburg. The Shapeshifters has been signed to Defected Records since 2008, and the duo were previously signed to Positiva. They were best known for their debut single "Lola's Theme", which went to No. 1 on the UK Singles Chart in July 2004.Formerly producing and touring as a duo with Max Reich, Simon Marlin has continued working and performing under the Shapeshifters moniker as a solo act since 2017.
His releases in the United States fall under the name Shape:UK, in part due to a trademark conflict with the Los Angeles-based hip hop group The Shape Shifters.