Advertising has been a big component of the success of theme parks and while many have created memorable commercials, Great Adventure went one step further creating a theme song. The theme song commissioned was "The Greatest Day In Your Life" and told about all the wonders waiting to be seen at Great Adventure. The song was used in its long form for a 90 second commercial for the 1975 season.

 
     
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Steve Karmen - The Jingle Man 
     
Steve Karmen was the composer/lyricist of "The Greatest Day In Your Life" along with dozens of other memorable commercial jingles that became part of our pop culture in the 60's, 70's and 80's like "I Love New York", "Sooner or Later You'll Own Generals (Tires)", "Me and My RC (Cola)", "(Hershey's) The Great American Chocolate Bar", and "Here Comes The King/When You've Said Bud You've Said It All (Budweiser)".  
     
     
     
     
Storyboard of "The Greatest Day in Your Life"
 
     
(Instrumental)
         
         
You are a-bout to begin the great-est day in your life,
         
         
at Great Ad-ven-ture. You are a-bout to ex-plorer the great-est place
         
         
in your life, at Great Ad-ven-ture. Ride the gi-ant fer-ris wheel
         
         
look a-round for miles and miles.  See the oth-er rides down be-low  
         
         
A place to bring the fam-i-ly, a place where you can real-ly let go.  
         
         
Great Ad-ven-ture is here. It's a place you'll re-mem-ber
         
         
the rest of the year.
         
         
Float on a flume ride and feel the great-est thrill in the world, at Great Ad-ven-ture.
         
         
Laugh at the dol-phins and the great-est high di-vers in all the world,
         
         
at Great Ad-ven-ture. A joust and then a char-iot race
         
         
will put a smile up-on your face, and a root-in' , toot-in' wild west-ern show.
         
         
The big-gest game sa-far-i park of an-y-where a-round you can go.  
         
         
         
ANNOUNCER:  GREAT ADVENTURE IS OFF EXIT 7A NEW JERSEY TURNPIKE. ITS NOW OPEN
         
    O-pen your eyes, cause the great-est day in your life is here,
EVERY DAY AND EVERY NIGHT FROM 10 TO 10.  SO COME ANY DAY, COME ANY NIGHT. THE GREATEST DAY IN
         
at Great Ad-ven-ture. O-pen your eyes, cause the great-est day in your life
YOUR LIFE IS HERE         
         
 
is here,   at Great Ad-ven-ture. (fade)
         
         
         
"The Greatest Day in Your Life" Sheet Music 
         
         
     
     
  The jingle "The Greatest Day in Your Life" coincided with an aggressive print campaign.  The advertisements surely set a lofty expectation for guests to Great Adventure.