“Omg guys I’m not an intern,” @whitneymuseum posted recently, replying to commenters joking about the Whitney’s bubbly new Threads persona. But informality, after all, is the point.

Teen superstar singer-songwriter Lorde took to Twitter to announce her new likeness on display at Madame Tussauds Hollywood in Los Angeles. “Omg guys … it’s my pleasure to finally announce ...