Stephanie Lang (born December 30, 1988), currently known by her stage name DYLN and previously known professionally as Stef Lang, is a Canadian singer and songwriter.
After winning a recording deal through a Canadian radio talent contest in 2006, she released two extended plays before her commercial debut album The Underdog (2010), which saw the success of the single "Mr.
Immature".
After the release of her second commercial studio album Self (2012) and three additional extended plays, Lang adopted the stage name DYLN in 2016 and independently released her debut single under that name the following year, "Better Things", which was well received.