If you were alive in 2000 and had ears, you definitely heard this song a million times. It's the kind of infectious, feel-good alt-pop that makes you want to belt it out in a car with the windows down.

"My girlfriend cries a lot, but I still think she's the best thing ever." Is the Vibe.

Nine Days tried to follow up with another hit, but let's be honest -- this is the only one anyone remembers.

SR-71 - "Right Now"

This song was basically a prelude to the pop-punk explosion of the early 2000s. Right Now had that perfect mix of bratty energy and "screw-you" lyrics that made it ideal for any angsty teenager.

Stroke 9 - "Little Black Backpack"

A breakup song with way more bite than your usual "I'm sad" ballad. Sung in the usually '90s whine/belt. This one is all about bitterness and potential violence -- "You oughta know why I'm gonna kick your ass."

It had just the right amount of snark and alt-rock edge to get stuck in your head for years. Stroke 9 is still around, but let's be real, this was their moment.

Wheatus - "Teenage Dirtbag"

Ah yes, the ultimate anthem for high school misfits everywhere, especially after being featured in the Jason Biggs movie Loser.

And even though it's technically a "one-hit wonder," Teenage Dirtbag has had a bigger second life than most songs from 2000, thanks to TikTok and millennials who refuse to let it go.

They were supposed to be a nu-metal act, but their one actual hit was this unexpectedly soft, Red Hot Chili Peppers-sampling track about finding the perfect girl.

It blew up, but their Ozzfest antics got them booted from the tour. They tried to reclaim their bad-boy image after Butterfly, but the world had already moved on.

There you go -- five bangers from 2000 that will officially be 25 years old in 2025. Feeling old yet?