The Backstreet Boys are a Grammy-nominated American vocal group. The group has charted 12 U.S. Top 40 hits on the Billboard Hot 100, and sold over 100 million albums worldwide, the best selling boy band of all time, and World's Biggest Money Makers (Concerts and Album Sales) 1997-2005: #1 ($533.1 million).

After returning to the music scene in 2005, their sound changed dramatically, incorporating only live instruments (some of which they play themselves) and a more guitar and piano driven pop rock sound. The four-member group consists of Nick Carter, Howie Dorough, Brian Littrell, and A. J. McLean. Original member Kevin Richardson left the group on June 23, 2006 to begin a family. People.com (2006). Kevin Richardson Leaving Backstreet Boys. Retrieved October 16, 2006. Internet Archive but the four-piece refused to rule out a possible return for the singer.

The Backstreet Boys, or BSB, is a boy band and pop group that rose to popularity in the late 1990s. Since then they have broken music and concert sale records, having sold more than 87 million albums (38 million in U.S.) to make them the highest-selling boy band on record. The group originally consisted of Nick Carter , Howie Dorough , Brian Littrell , Kevin Richardson , and A.J. McLean . Their debut album, Backstreet Boys , was released in 1996. The album debuted at #1 in Germany, Norway, Switz