Justin Bieber is a musician.
Justin Drew Bieber ( [ ˈbiːbər ] born March 1 , 1994 ) is a Canadian singer and songwriter . Under the Mistletoe is the first Christmas album and second studio album by Canadian recording artist Justin Bieber . Where Are Ü Now . is a song produced by American EDM artists Skrillex and Diplo under their collaborative effort Jack Ü , with vocals from Canadian singer Justin Bieber .