--- title: Mad Men Finale Coke Ad: Twitter Needs to Know Who Wrote It description: Twitter is desperately trying to figure out who wrote the 'I'd Like to Buy the World a Coke' jingle. Was it Don or Peggy? canonical: https://time.com/3882311/mad-men-finale-coke-song/ author: Tessa Berenson article:opinion: false article:content_tier: free article:published_time: 2015-05-18T11:36:17.000Z article:modified_time: 2026-05-11T05:03:33.406Z article:section: Entertainment og:title: Twitter Needs to Know Who Wrote the Coke Ad in the 'Mad Men' Finale og:description: What do you think? og:url: https://time.com/3882311/mad-men-finale-coke-song/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt9ecf2c03623eb07d/69884cf55f570f3a8ab1b2b6/959a69f0-8d07-8b2a-c8d2-a5b88dd25b34_mm713-07.jpg?branch=production&width=3840&quality=75&auto=webp&crop=16:9 og:image:width: 1200 og:image:height: 675 og:image:alt: Jon Hamm as Don Draper in AMC's Mad Men. og:type: article twitter:card: summary_large_image twitter:title: Twitter Needs to Know Who Wrote the Coke Ad in the 'Mad Men' Finale twitter:description: What do you think? twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt9ecf2c03623eb07d/69884cf55f570f3a8ab1b2b6/959a69f0-8d07-8b2a-c8d2-a5b88dd25b34_mm713-07.jpg?branch=production&width=3840&quality=75&auto=webp&crop=16:9 ---  # Twitter Needs to Know Who Wrote the Coke Ad in the _Mad Men_ Finale  by [Tessa Berenson](/author/tessa-berenson/)  ## Tessa Berenson May 18, 2015 11:36 AM CUT  Jon Hamm as Don Draper in AMC's Mad Men. Jon Hamm as Don Draper in AMC's Mad Men.AMC  by [Tessa Berenson](/author/tessa-berenson/)  ## Tessa Berenson May 18, 2015 11:36 AM CUT The closing song in the _Mad Men_ finale Sunday night was the famous Coca-Cola jingle “I’d Like to Buy The World A Coke,” but Twitter is trying desperately to figure out who the “I” is. Is it Don or Peggy? Some people thought that Don’s trip to the hippie retreat wasn’t enough for him to escape his true calling as an ad man, inspiring him to come up with the Coke pitch: > [](https://twitter.com/DavidCornDC/status/600137558048276483) > [](https://twitter.com/shellypuri/status/600186527918895105) > [](https://twitter.com/gritwriter/status/600139055771348995) > [](https://twitter.com/DavidClinchNews/status/600141336067473408) But others thought it was Peggy who came up with the song while Don sheds his identity as a Mad Man in California: > [](https://twitter.com/meredithcesare/status/600138836165971968) > [](https://twitter.com/dbcsg/status/600176547723632642) Or maybe it was both of them working together: > [](https://twitter.com/frenchhissing/status/600148947986829313) > [](https://twitter.com/christy%5Fbelden/status/600145016879751169) In real life, of course, the song was actually the brainchild of a man named Bill Backer, a creative director at McCann-Erickson. But getting in on the social debate Sunday night, even Coca-Cola thought it was Don: > [](https://twitter.com/CocaCola/status/600156009185865728) [_Read Next: ‘I’d Like to Buy the World a Coke’ Was the Perfect Way to End ‘Mad Men’_](http://time.com/3882114/mad-men-finale-id-like-to-buy-the-world-a-coke-ad/ "undefined") ### 'Mad Men' Up Close: Photos From the Set of the Celebrated Show  February 2014\. From left: Vincent Kartheiser as Pete Campbell, Elisabeth Moss as Peggy Olson and John Hamm as Don Draper behind the scenes on set of Mad Men’s seventh and final season, Los Angeles. Alex Majoli—Magnum for TIME  February 2014\. From center: Vincent Kartheiser as Pete Campbell and Christina Hendricks as Joan Harris behind the scenes on set of Mad Men’s seventh and final season, Los Angeles. Alex Majoli—Magnum for TIME  February 2014\. From left: Aaron Staton as Ken Cosgrove, Robert Morse as Bertram Cooper and other cast members behind the scenes on set of Mad Men’s seventh and final season, Los Angeles. Alex Majoli—Magnum for TIME  February 2014\. From left: Christina Hendricks as Joan Harris, January Jones as Betty Draper, Elisabeth Moss as Peggy Olson, and Vincent Kartheiser as Pete Campbell on the set of Mad Men’s seventh and final season, Los Angeles. Alex Majoli—Magnum for TIME  February 2014\. From left: Matthew Weiner, Creator of Mad Men and Robert Morse who plays Bertram Cooper, behind the scenes of Mad Men’s seventh and final season, Los Angeles. Alex Majoli—Magnum for TIME  February 2014\. Christina Hendricks, who plays Joan Harris, has makeup applied on the set of Mad Men’s seventh and final season, Los Angeles. Alex Majoli—Magnum for TIME  February 2014\. From center: John Slattery as Roger Sterling and Rich Sommer as Harry Crane behind the scenes on set of Mad Men’s seventh and final season, Los Angeles. Alex Majoli—Magnum for TIME  February 2014\. Matthew Weiner behind the scenes on set of Mad Men’s seventh and final season, Los Angeles. Alex Majoli—Magnum for TIME  February 2014\. Christina Hendricks as Joan Harris behind the scenes on set of Mad Men’s seventh and final season, Los Angeles. Alex Majoli—Magnum for TIME  February 2014\. From center: Elisabeth Moss, who plays Peggy Olson, and Matthew Weiner, Creator of Mad Men behind the scenes on the set of Mad Men’s seventh and final season, Los Angeles. Alex Majoli—Magnum for TIME  February 2014\. John Hamm as Don Draper behind the scenes on set of Mad Men’s seventh and final season, Los Angeles. 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