The Backstreet Boys (sometimes referred to as BSB) are an American vocal harmony group, formed in Orlando, Florida in 1993. The group consists of A. J. McLean, Howie Dorough, Nick Carter, Kevin Richardson, and Brian Littrell. They rose to fame with their debut international album, Backstreet Boys (1996). In the following year, they released their second international album Backstreet's Back (1997) and their U.S. debut album which continued the group's success worldwide. They rose to superstardom with their third studio album Millennium (1999) and its follow-up album, Black & Blue (2000).
After a two-year hiatus, they regrouped and released a comeback album Never Gone (2005). Richardson left the group after the conclusion of Never Gone Tour in 2006 to pursue other interests. The group then released two albums as a quartet: Unbreakable (2007) and This Is Us (2009).
In 2012, the group announced that Richardson had rejoined them permanently, and in the following year they celebrated their 20th anniversary and released their first independent album, In a World Like This (2013).