buddy holly that'll be the day meaning
That'll Be the Day In June 1956, Holly, Allison and Sonny Curtis went to see the movie The Searchers, starring John Wayne, in which Wayne repeatedly used the phrase "that'll be the day". This line of dialogue inspired the young musicians.
Star Wars Day Apocryphally, the reference was first used on May 4, 1979, the day Margaret Thatcher took office as Prime Minister of the United Kingdom. An online news article from the Danish public broadcaster says her political party, the Conservatives, placed a congratulatory advertisement in The London Evening News, saying "May the Fourth Be with You, Maggie. Congratulations."[4]