Bill Mullen, a fashion stylist and illustrator, wants you to know that he used to wear a belt made out of teeth, skulls on every finger and cataracts of crosses, his exotic turnout once spurring a stranger to bellow, “Go for it, space monkey, go for it.”

Solange Knowles is touting “Metatronia," an architecturally inspired performance piece conceived to explore the relationship of movement and architecture. “It's been a dream,” she confides, “to build modular sculptures that can tour, interact, and engage with the public.”

And Caroline Calloway, a writer and eyebrow-raising social-media diva, is happy to share what may be more than you ever wanted to know about her relationship with her father: “Scary,” she confides, “to see a parent living in a home full of dirt and trash and hoarded things.”

Famous or possibly hoping to be, they are members of a chorus, voices resonating in supersize captions, some as long as 300 words, published not on Facebook or Tumblr, as you may suspect, but on their Instagram feeds.