Rihanna made the “Smurfs” blue carpet a family affair, arriving fashionably late with sons RZA and Riot in custom Dior, while she stunned in a Saint Laurent maternity gown. Pregnant with her third child, RiRi voices Smurfette in the upcoming animated film and gushed, “I’m really excited for a new generation of Smurfs fans.” She joked A$AP Rocky could play “Freestyle Smurf” in a sequel. When asked about new music, she cheekily responded, “Uh-oh Smurf.” Smurfs hits theaters July 18.