Olivia Wilde, being the ever-supportive girlfriend she is, wore Harry Styles merch, and we love her all the more for it. 

Wilde is known for her down-to-earth outfits, like easygoing jeans, oversized sweaters, and comfy leggings, so this latest street-style 'fit isn't really a big surprise — and that's why we're so fond of it. We get to see a lot of "go big or go home" looks, but sometimes we just want, well, chill and easy, and Wilde's outfit encompasses that to a T.