LIKE: VERB OR PREPOSITION?

Like as a verb is used mainly to talk about enjoyment, preferences and habits. It is perhaps not quite as strong in emotional terms as love, or be fond of or be keen on. 

Like as a preposition with nouns or pronouns is used to express ideas of similarity or comparison.
LEARN MORE:
http://www.bbc.co.uk/worldservice/learningenglish/grammar/learnit/learnitv156.shtml

SOMEONE LIKE YOU

LIKE CAN BE USED EITHER AS A VERB (GUSTAR) OR AS A PARTICLE (COMO)
IN THIS SONG, THE TITLE IS SOMEONE LIKE YOU (Alguien como tú).

YOU'RE A FIREWORK

IN THIS SONG KATIE PERRY DEALS WITH BULLYING.
IN THE LYRICS YOU CAN LISTEN TO   LIKE USED TO GIVE EXAMPLES.
OFFICIAL LYRICS VIDEO HERE.
SPANISH TRANSLATION IN THIS LINK.