Last year, we ran a super-sized competition to determine the greatest pop song in modern history, from the ’80s to today. Now, we’re back — and this time, it’s all about honoring the best and boldest in music videos.

Perhaps one of the most iconic clips in Britney Spears' extensive catalog of widely-recognized music videos, "Toxic" will likely go down in history as one of the most effective portrayals of the femme fatale concept in modern pop culture. From her wardrobe (the blue stewardess outfit, that black catsuit, straight-up diamonds) to the futuristic setting of the video (is that Paris? but when?) to its risque plot (Britney on a motorcycle! intrigue! poison!), it quickly dominated the TRL charts and, at a cost of $1 million, remains Britney's most expensive music video to date.

Fresh off her American Idol win, Kelly Clarkson impacted radio back in 2004 with the scathing breakup anthem "Since U Been Gone," arguably one of the best pop songs released in the past 15 years. The video echoes the track’s “screw you” declaration, as Kelly trashes her ex-boyfriend’s place with reckless abandon — from destroying an entire CD stand (remember those? So retro!) to decimating a glass coffee table, Kelly exacts revenge in a way most viewers have only ever fantasized about doing.

Those are the contenders, and now the choice is yours. Which of these two videos deserves to move on to the next round? You can vote once per hour until the poll closes on November 25 at 5 PM.

Plus, be sure to vote in these other video-battles!

Greatest Pop Video Bracket 2000s First Round
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