Hope that this hasn't been created yet! I did a quick search with no results.
You describe two people. One shares their last name with the other persons first name. For example:
One directed a famous 3D movie, the other was one of Charlies Angels.
James Cameron Diaz.
Don't worry too much about spelling either. Just so long as the names sound the same outloud. If one is Woody Allen and the other is Alan Greenspan, then that's fine.
Alright so here's my first.
One is a famous piano player with a lot of strange costumes, the other is probably the best dancer in the church of scientology.