Trademarks "protect brand names and logos used on goods and services." That is, the labels you see on goods and the logos used to market them (1).
Copyrights project "an original artistic or literary work" (1). Songs, novels, stories, and paintings can all be copyrighted.
To distinguish between the two the US Patent and Trade Office gives the example of a brand name of a product and the TV commercial used to market the produce. The brand name needs a trade mark (1). The commercial--if it's an original work of art--could receive a copyright.