There are folks who can get away with a nickname or just a first name: Cher, Elvis. . .
Most cannot. Spike Lee once tried to sue "Spike TV", saying that folks would identify it with him. Spike Milligan or Spike Jones or that little dog with the circle around his eye come to mind when I hear Spike.
When I hear JT, I think of James Taylor, but some folks think Justin Timberlake.
I read a post about Amos being ill and wondered is that Amos Garrett? He's no spring chicken and I hope it's not too serious.