They look OK on Pharrell and cute on the little kid. The urban pearlwearer is kind of cute, except for the pearls.
In seventh grade I had a crush on Rudolph Valentino (sure, he'd been dead for decades, but I probably had just about as much a chance meeting Rudolph as I would meeting Paul McCartney or someone like that). But I'm not a big fan of his headwear in that picture.
I guess I'm just not much of a pearl person.