May 11, 2015 11:20 pm WATCH: Jimmy Fallon, Charlize Theron Play Dress-Up Jimmy Fallon and Charlize Theron pick out crazy costumes for each other and talk about who these new people are. US & World Videos 1:16 Prince Harry and Meghan Markle look chic at charity polo game on last day In Nigeria 2:05 Kim Kardashian throws son Psalm epic ‘Ghostbusters'-themed 5th birthday 1:14 Prince Harry photobombs Meghan Markle's selfie in Nigeria 4:41 How ‘Bachelorette' Hannah Brown knew fiancé Adam Woolard was the one 6:04 Matt Rife reveals wildest gift a fan gave him