'N Sync - They produced some solid hits "I Want You Back," "Tearin' Up My Heart," "It's Gonna Be Me," and dance moves"Bye Bye Bye" before Justin Timberlake realized his total awesomeness as a solo artist and the group broke up
Backstreet Boys (ON TOUR) - These handsome folks much prefer to be referred to as a "vocal harmony group" as opposed to boy band and will sing a cappella OFTEN to demonstrate those skills. Having just celebrated their 20th anniversary, maybe we should grant that request...
New Kids on the Block (ON TOUR) - You can only be a member of this band if your name begins with a "J" or a "D"...which turned out to be quite fortunate for Mark Wahlberg, who found his destiny in rapping/acting/modeling
98° (ON TOUR) - Before Nick Lachey famously became the smarter of two Newlyweds (the other half being Jessica "Is this chicken or fish" Simpson), he was belting out heartfelt ballads like "Because of You"
Mindless Behavior (ON TOUR) - These young'uns spent two years in vocal and dance training before unleashing nary a single unto the world. It's paid off so far, as they've scored opening slots for Backstreet Boys, Justin Bieber and Janet Jackson.
The Wanted (ON TOUR) - These English-Irish boys started picking up steam in the states with their "Glad You Came" single—AND they're managed by Scooter Braun, who also reps pop heavyweights like the Biebs, Carly Rae Jepsen and PSY