It just takes three notes, followed by the iconic "oh, baby, baby" for you to instantly recognize what song you are about to hear.
That's right, it's none other than Britney Spears' debut single "Baby One More Time" that changed the world of pop music forever, and the music video is celebrating 20 years of pop culture excellency.
While the single hit radio waves in October 1998, it wasn't until a month later on Nov. 26 that the world was introduced to the music video for "Baby One More Time," and more importantly, was introduced to Britney Spears herself.
The video features the then-16-year-old Spears daydreaming in class about dancing with her friends in the hallways and gymnasium of her high school, while wearing a schoolgirl outfit that immediately became an outrage for conservative parents. But that didn't matter -- the video skyrocketed Spears to pop legend status and went on to be one of the most iconic music videos of all time. In fact, it was the last music video that MTV's "TRL" played when the show closed in 2008.
Now go forth on your day and listen to this influential song that will surely fill up your nostalgia tank.