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"Hey, you" is a phrase which is often translated as "oye, tú", and "beautiful" is an adjective which is often translated as "hermoso". Learn more about the difference between "hey, you" and "beautiful" below.
hey, you( 
hey
yu
)A phrase is a group of words commonly used together (e.g., once upon a time).
a. oye, tú  (informal) (singular)
A word or phrase used to refer to the second person informal “tú” by their conjugation or implied context (e.g., How are you?).
Hey, you! That's my seat!¡Oye, tú! ¡Ese es mi asiento!
beautiful(
byu
-
dih
-
fuhl
)