On this week's episode of "What's the Trend," Casie and Aaron cover everything from cosplay contests to Ariana Grande's attack at the Wicked: For Good premiere in Singapore. Find out which famous singer is making their acting debut, which stars are returning for The Devil Wears Prada 2, and why James Van Der Beek is selling his Dawson's Creek memorabilia. Plus, Casie and Aaron share their stories about their reality tv show auditions.