It's all about the '90s in the music video for Nick Carter's new single, "19 in 99." With its catchy, upbeat sound, the song itself sounds like something straight out of the '90s, and the lyrics reminisce on Nick's glory days with the Backstreet Boys. ("Countdown back to Millennium, bleach blond, party on.") If it's hard for BSB fans to see Nick without the rest of the guys, don't worry; there's a cameo you'll definitely appreciate. The music video comes just a few weeks before Nick's tour kicks off on Feb. 24, so check it out, and then keep the nostalgic vibes coming with a look at the ultimate TRL time machine!