Popsugar Celebrity Halloween Costumes 2019 Celebrity Couple Halloween Costume Ideas 2019 25 Celebrity Couples You and Your Significant Other Can Be This Halloween 19 September 2019 by Kelsie Gibson View On One Page Photo 20 of 25 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 20 Blake Lively and Ryan Reynolds at Pokémon Detective Pikachu Premiere What to wear for Blake: A sequinned yellow dress with curly hair. What to wear for Ryan: A khaki suit with a jean vest and white button-down shirt. Previous Next Start Slideshow Halloween Costumes 2019Celebrity CouplesHalloween Costumes