noun
advertising jingle; commercial song
Wasei-eigo term for a short song or melody used in TV or radio commercials to promote a product or brand.
wasei-eigo (Japanese-coined English), from commercial song
あのコマーシャルソングは一度聞いたら忘れられない。
That advertising jingle is unforgettable once you hear it.
新しいコマーシャルソングを作っ
We were asked to create a new commercial song.