Most likely you mean “The Can-Can” by Offenbach, since a common earworm description like “de de duh de de duh de de de duh” matches that tune closely. A TikTok version or remix could also be what you heard, so if you want the exact clip, the fastest clue is whether it sounds classical, sped up, or dance-remix style.

Likely matches

  • The Can-Can — the rhythm and repeated melody fit your “de de duh” pattern well.
  • Centuries by Fall Out Boy — sometimes people describe its chanty hook in a similar staccato way on TikTok.
  • A TikTok sound/remix using a short loop of a familiar melody, which can make the original song harder to recognize.

Fast way to pin it down

  • If it sounds orchestral/classical , it’s probably The Can-Can.
  • If it sounds pop-rock with a big chant , it may be Centuries.
  • If you remember even one lyric, that usually solves it immediately.

Tiny humming test

Try these versions and see which one feels right:

  1. “De de duh, de de duh, de de de duh.”
  2. “Dun dun dun dun dun.”
  3. “Da da da da da, duh duh.”

TL;DR: my best guess is The Can-Can.