The names and phrases below have something in common that has nothing to do with their meanings.  It does have to do with a pattern in their letters. Can you spot it?

Celine Dion
President Nixon
Get directions
Best intentions
Be infeior

HINTS:
1. The letters make up a common refrain.
2. The letters in the pattern are all vowels.

Answer:

Each name and phrase has the vowel pattern E I E I O, with no other vowels in between.

Credit:
Don Gagliardo