Which is very big jingle in the world?

One of the most famous jingles in the world is the "I'm Lovin' It" jingle from McDonald's, which has been used in various advertising campaigns since its launch in 2003. Its catchy melody and simple lyrics have made it instantly recognizable globally, contributing to the brand's identity. Other notable jingles include the "Nationwide is on your side" from Nationwide Insurance and the "Ba da ba ba ba" from McDonald's, both of which have left a significant cultural impact.