The “Hilltop” TV ad grew out of a radio jingle, then needed more than one attempt to film. Coca-Cola’s own account traces Bill Backer’s idea to a flight diverted by fog to Shannon Airport in January 1971. Backer was traveling to London to work with music director Billy Davis and songwriters Roger Cook and Roger Greenaway. The group had not been traveling together when the plane diverted.
The next morning, Backer saw passengers who had been angry about the delay talking over bottles of Coke. He began to think of the drink as a small reason for strangers to keep one another company. A later Coca-Cola account says he wrote the line about buying the world a Coke on a napkin. That account gives his idea a specific setting; it does not say the television pictures were already planned.
From napkin to jingle
Backer shared the thought with Davis and Cook after reaching London. They developed the words with Greenaway for a Coca-Cola radio jingle. A history of the radio release identifies the New Seekers as its performers. The radio version came first; the familiar gathering of singers on a hill was a later visual concept.
The jingle first aired on American radio in February 1971, according to that history. Some bottlers were unenthusiastic, while listeners requested the music. Its response led the agency to consider how to put the idea on television.
Why it became a TV ad
Art director Harvey Gabor devised the hilltop image: young people from many places, each holding a Coke, appearing to sing together. Coca-Cola’s account names him as the creator of that visual concept. Its historical record and the History of Advertising Trust’s archive both connect the finished commercial to McCann Erickson.
Rain stopped an initial shoot at the cliffs of Dover. A later attempt near Rome also produced unusable film after rain soaked the cast. Account supervisor Sid McAlister secured another budget for a reshoot. Coca-Cola says the final budget topped $250,000. That is a lower bound, not an exact final cost.
For the successful Rome shoot, Coca-Cola says the agency hired five hundred young people through embassies and schools. The close-ups of the lead performers were filmed separately at a racetrack. This production history explains why an apparently simple hillside scene required multiple locations and budgets.
“Hilltop” first aired in July 1971.
A hit twice over
After the TV commercial aired, Coca-Cola and its bottlers received more than 100,000 letters about it, according to the company’s archive. Radio stations also got requests for the song. Billy Davis arranged a full-length version without the brand reference. The Hillside Singers recorded one version; the New Seekers later recorded another. Both charted.
The sequence matters: the branded radio jingle came first, the TV pictures brought a larger response, and the unbranded pop song followed. Calling the later single the source of the ad reverses that history.
Why it worked
- The people carried the message. Gabor’s image put the same branded bottles in the hands of a large international cast rather than making a product demonstration.
- Music outlived the broadcast. The pop recordings circulated without the Coca-Cola lyric, after the commercial generated demand for the song.
- The brand stayed present. The ad closed on the “It’s the Real Thing” line, recorded in the advertising archive.
Legacy
Coca-Cola has returned to the idea in later advertising. The original remains distinctive for the progression from a stranded traveler’s observation to a radio jingle, an expensive reshot film and a commercially released song.
The company’s letter count documents audience response, but it is not a sales figure. The ad’s impact is easier to document through its production records, the two charting recordings and its continued presence in advertising archives.