Premise: Justin Bieber . His fourth studio album Purpose was released in November 2015 , spawning three number one singles : `` What Do You Mean ? '' , `` Sorry '' , and `` Love Yourself '' . `` Love Yourself '' is a song recorded by Canadian singer Justin Bieber for his fourth studio album Purpose ( 2015 ) .
Hypothesis: Justin Bieber released at least four studio albums.
Label: ENTAILMENT