A 2014 song by Tamar Braxton has become a meme on TikTok lately, known for its intro vocals repeating, "Let me know, let me know," and rapper Future coming in with an almost undecipherable chorus.

The history of Tamar Braxton's "Let Me Know" becoming a meme is an odd timeline because why are people calling it the "Cave Diver Anthem?" What does this angelic hook have to do with the infamous Nutty Putty Cave Incident and the irrational pastime of spelunking?

Let's try and explain what's happening on TikTok and why so many people are obsessed with the "Let Me Know, Let Me Know" meme.

What's The 'Let Me Know' Song From TikTok?

The original song is called "Let Me Know" by R&B singer Tamar Braxton, featuring hip-hop artist Future, which was released back in October 2014. It was a smash hit at the time, but upon its release, outlets like Billboard called the song's intro sample "chipmunked."

That's because the song is a cover of a cover. The "let me know, let me know" intro is sampled from Aaliyah's 1994 song "At Your Best (You Are Love)" which is a cover of The Isley Brothers' original 1976 single.

What Are The 'Let Me Know' Lyrics?

Per Genius, the lyrics of the "Let Me Know" intro used in TikTok memes are:

[Intro]
Let me know, let me know

[Future]
Do you love the way I do when I'm lovin' your body?
Hey, do you love the way I do when I'm lovin' your body?

How Did 'Let Me Know' Become A Meme?

Last summer, a series of memes using a clip of content creator Leland Manigo dancing surfaced on TikTok, which primarily used a sped-up remix of Tamar Braxton's song "Let Me Know." The original video spawned a viral sound that was used by other creators heading into this year.

Thereafter, other meme trends have adopted the song as their own, like the memes using clips from the Nickelodeon show Henry Danger, which popped off in September 2024.

@thenontruth ts got me in tears 😭 #leland #RDC #meme ♬ original sound – SyncedJay

@.multixdovey fr tho #henrydanger #jacenorman #jacenormanedit #henrydangermeme #henrydangersideeye #jacenormanmeme #jacenormansideeye #henrydangeredit #henryhart #henryhartedit #viral #fyp #foryou #foryoupage #multixdovey ♬ original sound – SyncedJay

Why Are People Calling 'Let Me Know' The 'Cave Diver Anthem?'

A few weeks ago, a series of memes making fun of cave diving and spelunking spread online. They mocked the seemingly anti-instinctual activity, imagining the moment when cavers spot an impossibly narrow crack and think, "Oh, yeah!" The running visual gag is the explorer's feet sticking out of the crack.

At first, many of the videos used the beat of an underground rap song by Xaviersobased. However, over time, the primary sound changed to Tamar Braxton's "Let Me Know." Since then, many people are calling it the "Cave Diver Anthem."

@xenomikeyy 😭😭 #foryoupage #viral #trending ♬ lmk ꨄ – …

@dysqlan Cave dive anthem #cavedive #cavediving #future #letmeknow #meme #song #acapella #jewboyjacob ♬ original sound – dylan

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For the full history of Let Me Know, Let Me Know, be sure to check out Know Your Meme's entry for even more information.