Like denim, dresses are an essential in any summer wardrobe. From Bella Hadid’s powder blue dress that’s ideal for wedding guest dressing to Lupita Nyong’o’s luxe black-and-white midi, shop the chicest celebrity summer dress outfits for any occasion, ahead. Lupita Nyong’oNeil Mockford // Getty ImagesGot a summer soirée in the books? Bella HadidDKPAR/Mega // Getty ImagesIf you’re looking for a summer wedding guest outfit idea, take note the satin short-sleeve dress Bella Hadid wore in Cannes. Anne HathawayNeil Mockford // Getty ImagesWho says you can’t wear boots in the summer?