Songfacts®:

• The song title refers a medical condition in which one cannot see objects other than those straight ahead. Tunnel vision can be caused by glaucoma, alcohol consumption or hallucinogenic drugs, but in this instance the reason is a girl. "A million people in a crowded room," sings Timberlake, "but my camera lens is only set to zoom and it all becomes so clear."
• The 20/20 Experience album title was inspired by perfect vision. "It more or less came out of I was playing some of the stuff for my friends and they would come in and out of the studio," Timberlake explained to Ryan Seacrest. "I'd say, 'What do you think of this?' And my best friend said, 'This is music that you can see', and for some reason that stuck with me."
• Rather than being fixated by just one woman, the Jonathan Craven directed video finds Timberlake and Timbaland staring at three virtually naked female dancers. (The flesh-colored G-strings are their only clothing). The explicit visual appears to have taken its cue from the clip for Robin Thicke's "Blurred Lines" - the main difference being that in this instance, the pair's faces are projected upon the bare bodies of the three ladies.
  
  YouTube bosses decided the clip was too raunchy and they removed the video from the website. A few days later they returned it with an added warning about the content.