1. McDonald’s “I’m Lovin’ It” Launched in 2003, this jingle quickly became one of the most recognizable in fast food history. It was backed by a global campaign and used in nearly every commercial.

This will make me sound old, but here goes: "Back in my day," TV watching was much different. Way before VHS, DVD, or streaming, we had to sit in front of the television and watch commercials between ...