"It's Gonna Be Me" - N'SYNC
You can't mention the '90s without at least one N'SYNC reference. While 1D aren't known for their synchronized dance moves, a new twist on JT and company's smash hit from their 2000 album, No Strings Attached, will resonate with fans from all generations.
Leave it to Kim Kardashian to make this a part of her maternity wear.
Research and development has never looked this sexy.