earworm
ear worm |ˈi (ə )rˌwərm ˈɪ (ə )rˌwərm | ▶noun 1 short for corn earworm. 2 informal a catchy song or tune that runs continually through a person's mind.
earworm |ˈɪəwəːm | ▶noun a catchy song or tune that runs continually through someone's mind.