Premise: Justin Bieber . Bieber released his first full-length studio album , My World 2.0 , in 2010 . Bieber released his third studio album , Believe , in 2012 . His fourth studio album Purpose was released in November 2015 , spawning three number one singles : `` What Do You Mean ? ''
Hypothesis: Justin Bieber released studio albums.
Label: ENTAILMENT