#27: Kit Kat – “Gimme a Break”
Catchy jingles don’t get more earworm-y than “Give me a break, give me a break, break me off a piece of that Kit Kat bar.” The tune dominated ’80s and ’90s ad breaks, becoming so familiar that even people who didn’t eat Kit Kats could hum it. Sweet, simple, and unforgettable.

