If you grew up in the '90s, boy bands were all the rage. *NSYNC, Backstreet Boys, and 98 Degrees posters adorned the walls of girls' bedrooms everywhere. We've grown up and taken the posters down, and it feels like it's been a while since a boy band received as much attention. But that's all about to change with the British boy band One Direction. The group has become the first British group to open at No. 1 in the US with its debut album Up All Night, which is quite an amazing feat for these five young guys who were contestants on the British X Factor. This news might make you feel just a bit out of touch with kids these days. We got you covered. Click through for bios of the guys and more band trivia — à la Tiger Beat! Do you spot the next JT?