The Backstreet Boys are a group.
Backstreet Boys . The group then released two albums as a quartet : Unbreakable ( 2007 ) and This Is Us ( 2009 ) . Black & Blue is the fourth ( third in the U.S. ) album of the American vocal-pop group Backstreet Boys . In a World Like This is the eighth studio album ( seventh in the United States ) by the Backstreet Boys , released in 2013 through the band 's own record label K-BAHN . This Is Us is the seventh studio album , sixth in the United States , from American pop group Backstreet Boys .