The big news from last night's Billboard Music Awards? For starters, Katy and Miley rocked the stage from other countries (seriously), Michael Jackson performed (again, seriously) and a fresh-from-Cannes Kendall Jenner started to say One Direction (oh hey, Harry) instead of 5 Seconds Of Summer while presenting. That mega-oops aside, she and lil' sis Kylie totally nailed the red carpet, with Kendall in a white and black Olcay Gulsen jumpsuit and metallic pumps. Kylie went for all white everything in a spaghetti-strap dress that totally gave us Cher Horowitz in Clueless vibes. We <3 it, ladies — that's how you welcome summer in style.