A commercial jingle is a short and catchy song used in advertisements to promote a product or service. It helps companies grab people's attention and makes the message memorable. Full definition
Having a song, tune, or commercial jingle stuck in one's head is a phenomenon known as having an earworm. (discovermagazine.com)
Beautiful aspiring rock star Jude (Heard) is stuck in a rut - relegated to recording commercial jingles and lost in a series of one night stands. (rottentomatoes.com)
It's even more surprising that with a label like that, not one of the songs actually comes from either the original animated film or its live action equivalent, outside of a brief cameo by the fictitious commercial jingle «Kanine Krunchies.» (dvdizzy.com)