Billie Eilish made 7 million close friends to promote her album  YPulse’s Social Media Playbook told brands to utilize community features to feel “closer” to young consumers across socials, and this week Billie Eilish showed how it’s done. The Gen Z star pulled off a genius move on Instagram, gaining a whopping 7M followers (on top of her existing 100M+) in just two days. She got a flood of new “friends” after she added all her existing followers to her “Close Friends” Story, where she’s been teasing her upcoming album, Hit Me Hard and Soft. The posts feature cryptic artwork...