We have our own ever-evolving language at ALC-NYC, and much of it is comprised of earworms.
It’s a real word. Wikipedia has my back: An earworm, sometimes known as a brainworm, sticky music, or stuck song syndrome, is a catchy piece of music that continually repeats through a person’s mind after it is no longer playing.
Now you have the language to thank me for all the songs I just got stuck in your head…and to ask a friend for a replacement tune to push them out. Here’s some more serious, official info.