Then: N'sync
Dan Callister / Getty Images
Now: PrettyMuch
Phillip Faraone / Getty Images
Then: Backstreet Boys
Vince Bucci / AFP / Getty Images
Now: Forever In Your Mind
Alberto E. Rodriguez / Getty Images
Then: O-Town
Vince Bucci / Getty Images
Now: In Real Life
Alberto E. Rodriguez / Getty Images
Then: LFO
Kevin Winter / Getty Images
Now: Why Don't We
Phillip Faraone / Getty Images
Then: 98 Degrees
Diane Freed / Getty Images
Now: Citizen Four
Jonathan Leibson
Then: New Kids On The Block
Rob Loud / Getty Images
Now: Jack & Jack
Alberto E. Rodriguez / Getty Images
Then: New Edition
Amanda Edwards / Getty Images
Now: New Hope Club
Frazer Harrison / Getty Images
