October 31, 2014 4:08 am Fallon: Chris Rock Lists This Year's Top Halloween Costumes Chris Rock made a surprise visit to the “Tonight Show” Thursday and revealed 2014’s top Halloween costumes including “slutty pumpkin spice latte and “slutty Uber driver.” US & World Videos 1:34 Nicole Kidman floored over Olivia Rodrigo's AMC ad tribute 3:45 Gabrielle Union and Dwyane Wade's daughter had cutest reaction to mom's Met Gala dress 1:12 Ariana Grande channels Glinda at 2024 Met Gala 1:35 Rita Ora reveals Taika Waititi's last-minute change to her Met Gala dress: ‘Thank God' 1:36 WATCH: Some of the most talked about looks at the Met Gala