What is the name of national song that GCarlton Sampson?

There seems to be some confusion in your request. There isn't a person named "GCarlton Sampson" known for writing or performing national songs.

Could you clarify the following:

* Is the name spelled correctly?

* Are you referring to a specific country's national song?

* Are you looking for a song written by someone else with a similar name?

Once you provide more information, I can help you find the song you're looking for.