When “Judas” came to them, they were ready. Lady Gaga’s latest music video premiered on May 5, and within hours, her fans — her “little monsters,” as they call themselves — were responding in droves.

Discover What’s Streaming On: With the impending release of Inside Out 2 this weekend, the age-old question that millennials love to ask each other at parties is once again back in the zeitgeist: What ...