The Backstreet Boys are a girl group.
The Backstreet Boys ( often abbreviated as BSB ) are an American vocal group , formed in Orlando , Florida in 1993 . They rose to superstardom with their third studio album Millennium ( 1999 ) and its follow-up album , Black & Blue ( 2000 ) . The Backstreet Boys have sold over 130 million records worldwide , making them the best-selling boy band in history , and one of the world 's best-selling music artists . They are the first group since Sade to have their first nine albums reach the top 10 on the Billboard 200 , and the only boy band to do so .