Kylie Jenner’s cap and gown, which she word for her high school graduation, are two objects, I think. Isn’t that a plural subject in this sentence from Yahoo! Style?
If that were the only problem with that sentence, I’d probably ignore it. But no! The writer had to go tell us about a “sneak peak,” which I think refers to some mountain, like an Alp. Readers might be more interested in a sneak peek of a party thrown by Ryan Seacrest. Hey, at least she didn’t tell us it was throne by Mr. Seacrest. So maybe it’s not so bad.