Katy Perry danced and sang along to “Firework” with family and fans at a Los Angeles screening of her new concert film.

Katy Perry die-hards got the surprise of their “Lifetimes” on Wednesday night at The Grove when the pop superstar dropped into an early fan screening of her upcoming concert film.

Katy Perry says she’s “deeply appalled and angry” over the Trump Administration’s TikTok use of her song “Firework” that accompanied video footage of U.S. military strikes in Iran. In a social media ...