Quite a few tweets like this have popped up in the last hour when checking Billie's mentions. But I can't find anything. The best guess I have is that Kat VonD posted something on her Instagram, I think a story with Billie, and then removed it. Maybe she posted it to soon? So anyway, looks like an eyeliner collab in her makeup line which I think is awesome. Or maybe someone with more patience than me can figure out where it came from.