Calling all '90s fangirls — the trailer has been released for the upcoming Backstreet Boys documentary, Backstreet Boys: Show 'Em What You're Made Of, and it looks pretty fascinating. "From 1999 to 2002, we were the biggest band in the world . . . and then it just stopped," they say in the trailer, later asking, "What do you do when you're a full-grown man in a boy band?" Well, for one thing, you release a documentary. This one offers a behind-the-scenes glimpse of BSB on tour, and in the trailer, the guys open up about what it's like to be together for 20 years, giving a nod to both the good and the bad. The BSB documentary will hit theaters and VOD on Jan. 30 [1], but in the meantime, watch the full trailer to see what it's all about, then look back at some of the best holiday pinups from the '90s [2]!