The song's subject focuses on contemporary criticism of boy bands and pop music, and assures the public of their music being addictive and not being a trend. It reached number 19 on the U.S. Billboard Hot 100, and number nine on the UK Singles Chart.
The music video was directed by Wayne Isham. It begins with a girl (Sandra McCoy) holding a bowl of cereal (Alpha-Bits) watching a commercial of Justin Timberlake advertising pop to her: "Hey you! Yeah, I'm talking to you, sassy girl. Need a little ahh in your step? Try this on for size: i-i-i-i-i-it's Pop! I-i-i-it tastes real good and makes you feel kind of funny, not here, not down there, but all up in this area. And, c-coming J-July 24, 2001, Jumbo-pop." The girl drops her cereal bowl and the camera passes through three pieces spelling the word "POP". After the music starts, the video takes place at a colorful disco club with NSYNC performing on a lighted circle with the word "POP" in a neon sign behind them. While they are singing, Timberlake is also on a spinning spiral, and JC Chasez is in the crowd. Many special effects, including fast-motion, bullet-time, and computer generated warp-transitions, are used. At the end of the video, Timberlake executes his first music-video beatbox.
The video debuted on TRL May 30, 2001. During the dancing sequence part of the video, close up shots featured Joey Fatone, but the far away shots instead featured the video producer Wade Robson. Joey had injured his leg in a trap door during rehearsals for the new tour and could not do the dance sequences. Thus, Robson filled in, with dyed hair.