This is what I consider to be the "breakthrough pop single of the year". "Hollaback Girl" is one of only seven, count 'em, seven songs to go to #1 on the U.S. charts this year.
"Hollaback" set the record for becoming the #1 most downloaded song ever and the first to pass the million mark. Speaking of which - you might be better off doing a digital download of this single then getting this CD single. The so-called "mixes" on here aren't worth the price of the single. The only reason to get this single would be for the "Album Version" or the video.
There ARE some other mixes of "Hollaback Girl" floating around: the Gomi & Escape Mix, and the Jones & Moss Fired Up Mix. These are both official club mixes that were made for the song and are both pretty good. If you can find these on CD anywhere, go for it!
Is "Hollaback" overrated at all - maybe just a bit? Even so: it went to #1, its freakin catchy and it made Gwen a star. And it finally enabled the Neptunes to live up to all that insane hype they've always gotten. Without a doubt, this is one of the hits of the decade.