Something about Selena Gomez's recent single "Good for You" is not precisely what it seems. It appears to be about a woman fantasizing about showing her best side to a lover: "Gonna wear that dress you like -- so tight," she sings. "Let me show you how proud I am to be yours. Make you never want to leave." With its pendulum-swing rhythm, swirling keyboard atmospherics and affirming A$AP Rocky rap ("You look good, girl"), Gomez inhabits the song in her soft-spoken and sexy voice like she's keeping a secret. Is this total subversion to another person hiding some other agenda? Empowerment? Sarcasm?