Marketing professor James Kellaris of the University of Cincinnati studies earworms -- those tunes that so tenaciously cling to your ear hair and then neurons. In a 2003 study, he explored the tunes most often stuck in the heads of 559 students. Beating out heavy hitters like "We Will Rock You," "Who Let the Dogs Out" and the "Mission Impossible" theme song was the jingle promoting Chili's baby back ribs.
You know the tune. It sounds exactly like the bass line of The Doors' "Roadhouse Blues," which was released in 1970 and peaked at No. 50 on the U.S. Billboard's Top 100. Enough about The Doors, though: You know the song as, "I want my baby back, baby back, baby back, I want my baby back, baby back, baby back," and so on.
On a side note, the only other marketing jingle to make Kellaris' list was the Kit Kat jingle.