Popsugar Celebrity Celebrity Halloween Costumes Justin Bieber's Flippers at the Casamigos Halloween Party No, Really: How Did Justin Bieber Spend an Entire Halloween Party in Massive Flippers? 30 October 2023 by Chandler Plante View On One Page Photo 4 of 7 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 4 Previous Next Start Slideshow Celebrity Halloween CostumesJustin BieberHalloween