CACHE NOT AT POSTED COORDINATES.
To find this cache you may need to do a bit of research, or simply tap into that long forgoten earworm. Either way, this should lead you to a memorable 7-didget number. This number, along with a bit of mathematics, and you're on your way.
https://youtu.be/6WTdTwcmxyo
The number:
_ _ _ -_ _ _ _
Now for the math...
Lose the hyphen. Take these seven numerals and divide this number by 50.
(If you are using your smart phone at this point make sure you've accessed the Calculator function and not the phone's Keypad. Doh!)
_ _ _ _ _ _ _ /50 = ABC,DEF.xx
Take xx, write it down on a piece of paper or the palm of your hand. Forget it. You won't need these number again.
You should find the cache located at:
N45*34.ABC W094*09.DEF
Hopefull you'll soon have a Smiley 
as well as a song in your head for the rest of the day. One can only imagine what it must have been like to be a 12 year old girl named "Jenny" in 1982 when this song came out. OMG!