As a Song of Summer contender, “Pretty Girlsâ€Â is pretty bleh, but as a music video? It’s definitely … something. An apparent homage to 1988 Jeff Goldblum vehicle Earth Girls Are Easy — hey, it worked last time — the video stars Britney as a ditzy ‘80s valley girl and Iggy as an alien who comes to Earth to share her superpowered product placement with humanity. Good casting!