Popsugar Celebrity Halloween Costumes 2018 Celebrity Couple Halloween Costume Ideas 2018 23 Hot Celebrity Couples to Channel For Halloween This Year 26 July 2018 by Britt Stephens View On One Page Photo 11 of 23 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 11 Serena Williams and Alexis Ohanian Get ready to practice your billionaire swagger. Previous Next Start Slideshow Halloween Costumes 2018Celebrity CouplesHalloween