Joseph Bartlett-Vanderpuye, better known by his stage name Smiler, is a British rapper and former Grime MC, who was born in London. Vanderpuye first entered the limelight after releasing an underground mixtape in 2009, as well as the urban single "Enza".

After being spotted by a talent scout, Vanderpuye was signed to Warner Music UK, and released his debut single, "Delorean", featuring fellow rapper Wretch 32 in March 2012. The track originally featured rapper Lady Leshurr, but she was subsequently replaced by Wretch for the single release, following his recent chart success with hit singles "Traktor", "Unorthodox" and "Don't Go".

Vanderpuye was dropped from Warner Music in 2013 following poor sales of his fourth single, "Brand New Style". His album of the same name, which was scheduled for release in November 2013, remains unreleased.