McDonald's has used musical signatures in its advertising for decades, with the I'm Lovin' It campaign from 2003 turning its short sung hook into a global identifier. The five note ba da ba ba ba motif became inseparable from the brand and was reused across TV adverts in many countries. Online, the jingle was clipped for soundboards and meme edits because it communicates the whole restaurant in seconds. It is still used today for fast food jokes, parody adverts and nostalgic references to childhood trips and drive thru culture.