Members: A.J. McLean, Howie Dorough, Nick Carter and cousins Brian Littrell and Kevin Richardson.
Biggest hits: "Everybody (Backstreet's Back)," "I Want It That Way," "Larger Than Life" and "Quit Playing Games (With My Heart)."
Memorable Moment: Kevin Richardson caught the attention of the fashion police for wearing a "man skirt" to VH1's Men Strike Back.
Best lyric: "Everybody yeah! / Rock your body yeah / Everybody / Rock your body right! / Backstreet's back alright!" — "Everybody (Backstreet's Back)"
Where they are today: The Backstreet Boys are now a foursome—Kevin Richardson has been taking hiatus from the group since 2006, but is still in close contact with the guys. Read what Kevin Richardson has been up to.
The Backstreet Boys released their seventh album, This Is Us in 2009. Like Boyz II Men, the Backstreet Boys will set sail on an upcoming cruise in December. They are planning to go on tour with New Kids on the Block in 2011.
The Backstreet Boys reunite on Oprah's stage