How a bassline can carry a song
Launch library · evergreen read

A genuinely strong bassline can function as a song's true underlying backbone, providing both rhythmic drive and harmonic foundation even when the vocal melody sitting comfortably above it happens to be doing comparatively very little movement of its own across the wider arrangement from start to finish.
Some of the most memorable songs in popular music are actually built from the bass upward, with melody and lyrics added considerably later to complement a groove that was already genuinely compelling entirely on its own, long before a single word had even been written for the song itself at all.
When a bassline is genuinely strong, listeners often find themselves quietly humming it alongside, or occasionally even instead of, the main vocal melody, real proof that a song's true underlying hook is not always necessarily the part actually sung out loud by the singer standing right at the front of the mix.